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Dummer. ゛☀
2017年08月07日
Description
At first glance it is very similar to the Green-winged Orchid and has the same green-veined 'hood' formed by the sepals, but on closer inspection there are several important differences: the overall plant is rather spindly in appearance, the flower head is lax and with fewer individual flowers than are usually found on other Green-winged Orchids. It is, however, the lip that is very different; it is longitudinally folded, and although flushed with pink-purple on the outer margins, the centre has hardly any discernible markings or is completely white.
Distribution
This member of the Anacamptis morio (Green-winged Orchid) group of orchids occurs in the western Mediterranean region. It is most commonly found in the Iberian Peninsula, but its territory extends northwards as far as southern France.
Habitat
Orchids of the Anacamptis morio group are in steep decline in their traditional strongholds of old, unimproved meadows due to the excessive use of herbicides by the farming industry.
In the parts of the Mediterranean region where traditional farming methods are still used, it is possible to find large numbers of Green-winged orchids and their close relatives the Champagne Orchid and the Long-spurred Orchid Anacamptis longicornu.
At first glance it is very similar to the Green-winged Orchid and has the same green-veined 'hood' formed by the sepals, but on closer inspection there are several important differences: the overall plant is rather spindly in appearance, the flower head is lax and with fewer individual flowers than are usually found on other Green-winged Orchids. It is, however, the lip that is very different; it is longitudinally folded, and although flushed with pink-purple on the outer margins, the centre has hardly any discernible markings or is completely white.
Distribution
This member of the Anacamptis morio (Green-winged Orchid) group of orchids occurs in the western Mediterranean region. It is most commonly found in the Iberian Peninsula, but its territory extends northwards as far as southern France.
Habitat
Orchids of the Anacamptis morio group are in steep decline in their traditional strongholds of old, unimproved meadows due to the excessive use of herbicides by the farming industry.
In the parts of the Mediterranean region where traditional farming methods are still used, it is possible to find large numbers of Green-winged orchids and their close relatives the Champagne Orchid and the Long-spurred Orchid Anacamptis longicornu.
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Dummer. ゛☀
2017年08月07日
Description
The Green-winged Orchid is not as common as the Early Purple Orchid Orchis mascula and, on close inspection, can be identified by the distinct parallel greenish veins on either side of the hood formed by the tepals on the upper part of the flower. These veins are never found on the Early Purple Orchid. The colour of the flowers can vary from deep purple to very pale pink (as below). Occasionally white forms are found - see below.
Distribution
The Green-winged Orchid can be found throughout the UK, in many European countries including Slovenia and Bulgaria, and in North Africa and the Near East.
This lovely orchid is in serious decline in the UK, and it is also thought to have become extinct in The Burren in Ireland due to destruction of its preferred habitat of old, umimproved, species-rich meadows.
We have seen Green-winged Orchids at Kenfig National Nature Reserve in South Wales, and there are marvellous displays of Green-winged Orchids each spring in a large grassy area, which is managed without the use of herbicides and pesticides, at Bristol Waterworks.
Habitat
Green-winged Orchids cannot tolerate the kind of chemical intervention favoured by the farmers of today in order to maximise on crop production.
In Mediterranean countries where traditional farming methods continue to be used, it is still possible to find large numbers of these beautiful orchids along with some of their close relatives, the Champagne Orchid Anacamptis morio subsp. champagneuxii and the Long-spurred Orchid Anacamptis morio subsp. longicornu. The Algarve region of Portugal is a particularly good place to see these orchids.
Flowering times
In the UK Green-winged Orchid flowers in May and June. In the Mediterranean region the flowers appear from late March to the beginning of June.
The Green-winged Orchid is not as common as the Early Purple Orchid Orchis mascula and, on close inspection, can be identified by the distinct parallel greenish veins on either side of the hood formed by the tepals on the upper part of the flower. These veins are never found on the Early Purple Orchid. The colour of the flowers can vary from deep purple to very pale pink (as below). Occasionally white forms are found - see below.
Distribution
The Green-winged Orchid can be found throughout the UK, in many European countries including Slovenia and Bulgaria, and in North Africa and the Near East.
This lovely orchid is in serious decline in the UK, and it is also thought to have become extinct in The Burren in Ireland due to destruction of its preferred habitat of old, umimproved, species-rich meadows.
We have seen Green-winged Orchids at Kenfig National Nature Reserve in South Wales, and there are marvellous displays of Green-winged Orchids each spring in a large grassy area, which is managed without the use of herbicides and pesticides, at Bristol Waterworks.
Habitat
Green-winged Orchids cannot tolerate the kind of chemical intervention favoured by the farmers of today in order to maximise on crop production.
In Mediterranean countries where traditional farming methods continue to be used, it is still possible to find large numbers of these beautiful orchids along with some of their close relatives, the Champagne Orchid Anacamptis morio subsp. champagneuxii and the Long-spurred Orchid Anacamptis morio subsp. longicornu. The Algarve region of Portugal is a particularly good place to see these orchids.
Flowering times
In the UK Green-winged Orchid flowers in May and June. In the Mediterranean region the flowers appear from late March to the beginning of June.
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Dummer. ゛☀
2017年08月07日
This orchid is a member of the Anacamptis morio (Green-winged Orchid) group and is rather similar to Anacamptis champagneuxii(Champagne Orchid) with which it occurs in the western Mediterranean region. It is, however, a much bigger plant and carries more individual flowers on each spike. Also, unlike the Champagne Orchid, the lip has obvious markings almost in the form of two vertical lines of spots. Anacamptis longicornu also has an exceptionally long spur, up to 17 mm, which is sometimes slightly curved but more often straight.
Anacamptis morio is in sharp decline in the UK and other parts of Europe due to the farming industry's excessive use of herbicides, but it is still possible to find it, as well as its close relatives the Champagne Orchid and the Long-spurred Orchid, in large numbers in the Mediterranean countries where traditional farming methods are still the order of the day.
The long spur that gives Anacamptis longicornu its name
Apart from the Iberian Peninsula, where it is well-known, Anacamptis Longicornu occurs also in Corsica, Calabria and other Mediterranean countries.
Anacamptis morio is in sharp decline in the UK and other parts of Europe due to the farming industry's excessive use of herbicides, but it is still possible to find it, as well as its close relatives the Champagne Orchid and the Long-spurred Orchid, in large numbers in the Mediterranean countries where traditional farming methods are still the order of the day.
The long spur that gives Anacamptis longicornu its name
Apart from the Iberian Peninsula, where it is well-known, Anacamptis Longicornu occurs also in Corsica, Calabria and other Mediterranean countries.
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Dummer. ゛☀
2017年08月07日
Also known as Garlic Mustard, this biennial spring wildflower smells remarkably like garlic when the stems are crushed.
Identification
The elongated heart-shaped stalked leaves are 5 to 8cm long (excluding the stalks) and bright yellowish green in early spring, darkening somewhat as the year advances; they are toothed and look like stinging nettles. In their second year the plants grow to 30cm to 120cm tall.
The white flowers appear in small clusters in spring and early summer. As with other members of the Cabbage family (Brassicaceae) each flower has four petals; they are oblong and 4 to 8mm long by 2 to 3mm wide. The fruit (seedpod) is a slender upright four-sided silique some 4 to 5.5cm long and containing two rows of black seeds that are released once the pod dries out and splits open.
Distribution
Alliaria petiolata is widespread and common throughout Britain and Ireland, and is found throughout Mainland Europe and in Africa and India. In North America it is an invasive alien plant.
Habitat
Appropriately named, this is a plant of hedgerows, but in shaded places you will also find it lining the banks of ditches and streams.
Blooming Times
The best of the flowers of Garlic Mustard or Jack-by-the-Hedge appear in April and early May, but you can occasionally find a few blooms right through until August.
Uses
Jack-by-the-Hedge is edible and, if collected when young, the leaves make an excellent addition to salads, sauces and other dishes.
Identification
The elongated heart-shaped stalked leaves are 5 to 8cm long (excluding the stalks) and bright yellowish green in early spring, darkening somewhat as the year advances; they are toothed and look like stinging nettles. In their second year the plants grow to 30cm to 120cm tall.
The white flowers appear in small clusters in spring and early summer. As with other members of the Cabbage family (Brassicaceae) each flower has four petals; they are oblong and 4 to 8mm long by 2 to 3mm wide. The fruit (seedpod) is a slender upright four-sided silique some 4 to 5.5cm long and containing two rows of black seeds that are released once the pod dries out and splits open.
Distribution
Alliaria petiolata is widespread and common throughout Britain and Ireland, and is found throughout Mainland Europe and in Africa and India. In North America it is an invasive alien plant.
Habitat
Appropriately named, this is a plant of hedgerows, but in shaded places you will also find it lining the banks of ditches and streams.
Blooming Times
The best of the flowers of Garlic Mustard or Jack-by-the-Hedge appear in April and early May, but you can occasionally find a few blooms right through until August.
Uses
Jack-by-the-Hedge is edible and, if collected when young, the leaves make an excellent addition to salads, sauces and other dishes.
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Dummer. ゛☀
2017年08月07日
This is one of those plants, like for example the Autumn Crocus, Colchicum autumnale, that produce flowers before their leaves appear. When eventually they do appear the leaves are dark green and very thin and strap-like.
Identification
Look out for these lovely wildflowers, which are white and sometimes tinged with pink, in open grassy meadows and rocky or stony ground.
Unlike the Autumn Crocus that flowers at the same time, these plants do not require as much moisture and tolerate quite dry conditions.
Autumn Snowflake flowers from September until the end of November, their growth having been stimulated by the cooler temperatures that arrive later in the year along with the first, and most welcome, rainfalls.
This specimen was photographed in the Algarve in Portugal in November. We found them in the Parque Natural da Ria Formosa which is home to many other lovely plants, birds and animals.
Identification
Look out for these lovely wildflowers, which are white and sometimes tinged with pink, in open grassy meadows and rocky or stony ground.
Unlike the Autumn Crocus that flowers at the same time, these plants do not require as much moisture and tolerate quite dry conditions.
Autumn Snowflake flowers from September until the end of November, their growth having been stimulated by the cooler temperatures that arrive later in the year along with the first, and most welcome, rainfalls.
This specimen was photographed in the Algarve in Portugal in November. We found them in the Parque Natural da Ria Formosa which is home to many other lovely plants, birds and animals.
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Miss Chen
2017年08月06日
Description: This shrubby perennial is up to 3¼' tall. It tillers at the base, sending up multiple stems that are erect to ascending. These stems are light green to light yellow, terete, and pubescent or hairy, becoming woody with age in the absence of fire or browsing from animals. The leaves are alternate or opposite; they occur along the entire length of each stem. The leaves are up to 3" long and 2" across; they are ovate in shape and their margins are smooth to finely serrated and slightly ciliate. The upper leaf surface is pale-medium to dark green, and smooth to somewhat rough from minute stiff hairs. The lower leaf surface is pale green and pubescent or hairy; hairs are typically more abundant along the lower sides of the veins. The central vein and two primary lateral veins are palmate, while the remaining veins are pinnate; the upper leaf surface is often wrinkled along these veins. The petioles are short, light green to light yellow, and pubescent or hairy. The upper stems terminate in panicles of flowers; axillary panicles of flowers also develop from the axils of upper leaves. The peduncles (basal stalks) of these panicles are 2-8" long, light green to light yellow, terete, relatively stout, and pubescent or hairy.
Individual panicles are 2-5" long and 2-3" across; their lateral branches are up to 1½" long and widely spreading to ascending. Both the rachis and lateral branches are light green, terete, relatively stout, and finely hairy. Along the rachis and lateral branches of each panicle are clusters of flowers on slender white pedicels. These pedicels are ¾–1" long. Each flower is up to ¼" across, consisting of 5 white sepals, 5 white petals, 5 stamens, and a pistil. The sepals are triangular-ovate and folded inward, while the petals are widely spreading. The petals have long narrow bases and widened tips; the lateral edges of these tips are folded upward. The blooming period occurs during early to mid-summer, lasting about 3-4 weeks. There is a pleasant floral fragrance. Afterwards, the flowers are replaced by 3-lobed seed capsules up to ¼" across. At maturity, these capsules become dark brown or black, and they split open to mechanically eject their seeds up to several feet. Each capsule contains 3 seeds that are 2-3 mm. in length, brown to dark brown, glossy, and ovoid in shape. The root system consists of a stout taproot.
Cultivation: The preference is full or partial sun and average to slightly dry conditions. The soil can contain loam, rocky material, or sand. This plant adds some nitrogen to the soil. Germination from seed can be slow and difficult – exposing them to hot water may be helpful. Transplants are easier to manage and faster to develop. Drought resistance is very good – under severe conditions, the leaves will become discolored and shrivel, but quickly revive when rainfall returns. Foliar disease is rarely a significant problem.
Range & Habitat: The native New Jersey Tea occurs throughout Illinois, except for a few counties in the southern part of the state (see Distribution Map). It is occasional to locally common in high quality habitats, but uncommon elsewhere. Habitats include mesic to dry black soil prairies, gravel prairies, sand prairies, hill prairies, sandy savannas, rocky upland forests, limestone glades, and barrens with scrubby vegetation. Occasional fire is a beneficial management tool in promoting the development and spread of this plant.
Faunal Associations: The nectar and pollen of the flowers attract a variety of insects, especially bees, wasps, flies, and beetles. These floral visitors include Halictid bees (Agapostemon spp., Halictus spp., Lasioglossum spp.), Andrenid bees (Andrena spp.), plasterer bees (Colletes spp.), Sphecid wasps (Oxybelus spp., Cerceris spp., Tachysphex spp.), Vespid wasps (Polistes spp., Stenodynerus spp.), spider wasps (Anoplius spp.), Syrphid flies, thick-headed flies (Conopidae), Tachinid flies, flesh flies (Sarcophagidae), bottle flies (Lucilia spp.), Muscid flies, and miscellaneous beetles (Robertson, 1929). Hairstreak butterflies (Satyrium spp.) also visit the flowers. Other insects feed destructively on the foliage, seeds, and other parts of New Jersey Tea. These species include stem-boring larvae of a long-horned beetle (Calliomoxys sanguinicollis), leaf beetles (Babia quadriguttata, Pachybrachis trinotatus), seed-eating broad-headed bugs (Alydus spp.), and the Angulate Tingid (Gargaphia angulata); see Yanega (1996), Clark et al. (2004), Schaeffer (1980), and Cranshaw (2004). In addition, the larvae of several moths feed on New Jersey Tea, including the Broad-lined Erastria (Erastria coloraria), Sulfur Moth (Hesperymia sulphuraria), and Red-fronted Emerald (Nemoria rubrifrontaria); the caterpillars of a butterfly, the Spring/Summer Azure (Celastrina argiolus), and caterpillars of a skipper, the Mottled Duskywing (Erynnis martialis), also feed on this shrub (Covell, 1984/2005; Bouseman & Sternburg, 2001; and Bouseman et al., 2006).
The foliage and stems are readily consumed by various mammalian herbivores, including elk (native in Illinois at one time), deer, rabbits, and livestock (Martin et al., 1951/1961). Some upland gamebirds, like the Wild Turkey and Bobwhite Quail, also use New Jersey Tea as a food source (Van Dersal, 1939). This can make the establishment of this plant difficult where there is an overpopulation of such animals.
Photographic Location: The photographs were taken at Loda Cemetery Prairie in Iroquois County, Illinois.
Comments: This little shrub has a lot going for it from both horticultural and ecological perspectives. It was used by colonists during the Revolutionary War as a substitute for tea (hence the common name), even though the leaves contain no caffeine. Early pioneers discovered that the stout roots of New Jersey Tea (Ceanothus americanus) were a formidable barrier to the plow. Chemical compounds from this plant have been found to affect the speed of blood coagulation (Lynch et al., 1958), and they have been found to have antimicrobial properties on oral pathogens (Li et al., 1997). The only other species in this genus that occurs in Illinois, Redroot (Ceanothus ovatus), differs from New Jersey Tea by having more narrowly shaped leaves and shorter panicles of flowers.
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Miss Chen
2017年08月06日
Description: This perennial wildflower consists of a low rosette of basal leaves up to 1½' across and a flowering stalk about 1½–2' tall. The floppy basal leaves are 6-12" long and 1/3" (8 mm.) across; they are medium to dark green, linear in shape, parallel-veined, glabrous, and smooth along their margins. Along the underside of each basal leaf, there is a prominent mid-rib. The erect central stalk is slender, light to medium green, and glabrous; it terminates in a spike-like raceme of flowers that is several inches in length. Underneath the floral spike, there are usually 1-3 bracts along the stalk. These bracts are green, linear to linear-lanceolate in shape, and up to ¾" long. Each flower is ¾–1" across, consisting of 6 tepals, 6 stamens with bright yellow anthers, and a green central ovary with a slender style. The tepals are light blue-violet to nearly white; they are oblong in shape and spread widely from the center of the flower. Each tepal (petal or petal-like sepal) has 1-3 poorly defined veins along its length.
At the base of each flower, there is a single linear bract up to ¾" long that is early-deciduous. The slender pedicel of each flower is about the same length as the bract. The flowers begin to bloom from the bottom of the raceme and continue to bloom upward toward the apex; each flower lasts only 2-3 days. The blooming period occurs from mid- to late spring and lasts about 2-3 weeks. Each fertilized flower is replaced by a 3-celled seed capsule that is about 1/3" in length and nearly as much across. Each seed capsule contains many small seeds that are black and shiny. The basal leaves turn yellow and wither away by mid-summer. The root system consists of a bulb with fibrous roots. This wildflower reproduces by reseeding itself.
Cultivation: The preference is full sun to light shade, moist conditions, and rich loamy soil. Wild Hyacinth is slow to develop, but fairly long-lived. Vegetative growth and development occurs during the cool weather of spring, when adequate moisture is essential.
Range & Habitat: Wild Hyacinth is found occasionally throughout Illinois (see Distribution Map), where it is native. Habitats include moist black soil prairies, moist savannas, moist open woodlands (particularly along the banks of streams), rocky wooded slopes, and limestone glades. This species is typically found in high quality habitats, whether prairies or woodlands.
Faunal Associations: The flowers attract their fair share of insects, including many bees and flies, and occasional butterflies and wasps. Most of these insects seek nectar from the flowers, although some short-tongued bees also collect pollen. Bee visitors include honeybees, bumblebees, Cuckoo bees (Nomada spp.), and Halictid bees (Halictus spp., Lasioglossum spp., etc.). Other floral-faunal relationships are poorly understood. White-Tailed Deer occasionally chomp off the tops of the basal leaves. Both the foliage and bulbs are not known to be toxic to mammalian herbivores.
Photographic Location: Along a woodland stream in Douglas or Coles County in east-central Illinois.
Comments: Wild Hyacinth has attractive flowers that are conspicuous during the spring. It is usually found in woodland habitats, but also occurs in prairies. Wild Hyacinth differs from the less common Camassia angusta (Prairie Hyacinth) in several ways, among them: 1) It has slightly larger flowers than the latter, 2) its flowers are usually a slightly lighter shade of blue-violet, 3) its seed capsules are about as broad as long, while Prairie Hyacinth has seed capsules that are slightly longer than broad, 4) the bracts of its flowering stalk are less persistent than those of Prairie Hyacinth, and 5) it blooms earlier in the spring.
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Miss Chen
2017年08月06日
Description: This perennial plant is ¾-1½' tall and unbranched. It is usually erect, but sometimes sprawls across the ground. The central stem is light green and hairy; it rarely twines about the stems of adjacent plants, fences, or other objects. Alternate leaves about 1½-3" long and about one-half as much across occur along the central stem. They are yellowish green to dull green, oblong-cordate in shape, smooth along their margins, and slightly to moderately hairy. The leaf bases are usually cordate (less often truncate or rounded), while their tips are blunt or pointed. Each leaf usually has a short petiole about ½" long or less; sometimes the upper leaves are sessile. Occasionally, individual flowers develop from the axils of the leaves; there are 1-4 flowers per plant. Each flower is about 2-3" long and 2" across, consisting of a white (rarely pink) funnelform corolla with 5 shallow lobes, 5 light green sepals, several stamens, and a pistil with 2 white stigmata. At the base of the flower, 2 sepal-like bracts surround the sepals; these bracts are light green and ovate. The pedicel is 1" long or less.
The blooming period occurs from late spring to mid-summer and lasts about 1-2 months. On any given day, only 0-1 flowers are in bloom per plant. Each large flower opens up during the early morning and closes at around noon; it lasts only a single day. Fertilized flowers are replaced by globoid seed capsules; each capsule is 2-celled and about 1/3" across. Each cell of the capsule contains a single large seed. The root system is rhizomatous, occasionally forming vegetative offsets.
Cultivation: The preference is full sun, dry conditions, and soil containing sand, rocky material, or clay.
Range & Habitat: The native Erect Bindweed is found primarily in central and northern Illinois, where it is uncommon (see Distribution Map). Populations of this species have declined across the state. Habitats consist of upland sand prairies, gravel prairies, hill prairies, open rocky woodlands, limestone glades, and roadside embankments. Erect Bindweed tends to increase in response to occasional wildfires as this reduces woody vegetation and excess debris. This is an indicator plant of high quality prairies.
Faunal Associations: Little is known about floral-faunal relationships for Erect Bindweed, although there is some information available about its more weedy relatives, e.g. Calystegia sepium (Hedge Bindweed). The flowers are cross-pollinated primarily by miscellaneous long-tongued bees. The caterpillars of Agrius cingulatus (Pink-Spotted Hawk Moth) require bindweed as a food source; the caterpillars of Emmelina monodactyla (Common Plume Moth) and Bedellia somnulentella (Morning Glory Leafminer) also feed on the foliage of species in the Bindweed family. Several beetles feed on the foliage and other parts of these same species: Typophorus nigritus (Sweet Potato Leaf Beetle), Strongylocassis atripes and other tortoise beetles, Chaetocnema confinis (Sweet Potato Flea Beetle), the stem-boring beetle Phaea monostigma, and the seed weevil Megacerus discoidus. One insect, Charidotella sexpunctata (Golden Tortoise Beetle), has been found on the foliage of Erect Bindweed specifically. There are also records of upland gamebirds eating the seeds of bindweed species: the Bobwhite, Ring-Necked Pheasant, and Prairie Chicken.
Photographic Location: The Coneflower Hill Prairie near Lake Shelbyville in Moultrie County, Illinois. The flowers are mostly closed because the photograph was taken after the blooming period during the morning.
Comments: Unlike Erect Bindweed, most species in the Bindweed family are long twining vines that are adapted to thickets, overgrown meadows, and similar habitats. Most of these species are weedy annuals, although Ipomoea pandurata (Wild Sweet Potato) is a perennial with a tuberous swollen root. Species that are twining vines produce large showy flowers in abundance. While the flowers of Erect Bindweed are also large and showy, they are sparingly produced. All of these species have short-lived flowers that remain open during the morning of a single day. Other common names of Calystegia spithamaea are Dwarf Bindweed, Low Bindweed, and Low False Bindweed. An older scientific name of this species is Convolvulus spithamaeus.
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Miss Chen
2017年08月06日
Description: This perennial wildflower is up to 1' tall and sprawls across the ground, producing several vine-like stems up to 4' long from a central taproot. These angular stems are light green to dull reddish purple and covered with spreading white hairs. The alternate leaves are up to 4" long, 4" across, and more or less orbicular in outline; they are palmate, usually with 5 major lobes that are cleft (sharply divided), as well as some secondary lobes and margins with coarse teeth. The leaves have hairy petioles that can easily exceed 4" in length. A pair of conspicuous green stipules are located at the base of each petiole. Each stipule has a shape that is half-ovate.
From the axils of the leaves, individual flowers develop from pedicels up to 6" long. The flowers are about 1½–2½" across, consisting of 5 broad magenta petals, a columnar reproductive structure, and a whitish green to reddish green calyx. At maturity, the columnar structure expands outward slightly, revealing numerous white stamens and pinkish style-branches. The petals often become white near the center of the flower. The calyx is divided into 5 lanceolate lobes that have light-colored ridges and are quite hairy; these lobes are shorter than the petals. Underneath the calyx, there are 3 floral bracts that are similar in appearance to the calyx lobes. The blooming period occurs from late spring to late summer and lasts about 1-2½ months. There is no noticeable floral scent. The flowers are replaced by carpels that are arranged together like a ring. These carpels are flattened and reniform (kidney-shaped) with short hairy beaks. The flattened sides of the carpels are reticulated, rather than smooth. Each carpel contains a single seed. This wildflower spreads by reseeding itself.
Cultivation: The preference is full sun and mesic to dry conditions. In Illinois, this plant often grows in poor soil that contains sand, gravel, or clay. In rich cultivated soil, it will become longer than it normally does in the wild. After mid-summer, this plant gradually withers away.
Range & Habitat: This non-native wildflower has naturalized in only a few scattered counties in the northern two-thirds of Illinois (see Distribution Map), where it is uncommon. It is adventive from areas further to the west or southwest of the state. Habitats include dry prairies, areas along railroads and roadsides, and abandoned fields. In these habitats, the ground vegetation is relatively low and sparse. In Illinois, Purple Poppy Mallow is often planted in flower gardens because of its attractive flowers.
Faunal Associations: The flowers are cross-pollinated primarily by bees. The caterpillars of Pyrgus communis (Checkered Skipper) sometimes feed on Callirhoe spp. (Poppy Mallows). The foliage is readily consumed by mammalian herbivores, including groundhogs, deer, rabbits, and livestock. This could make the survival of local populations of this plant difficult where there is a preponderance of such animals. The taproot is edible and can be used as emergency food by humans, which means that it is probably edible to pocket gophers and other small rodents as well.
Photographic Location: A flower garden in Urbana, Illinois.
Comments: Purple Poppy Mallow has attractive foliage and very showy flowers that bloom for a fairly long period of time. It can be distinguished from other Callirhoe spp. in Illinois by the shape of its leaves, sprawling hairy stems, and the color of its flowers. For example, Callirhoe alceoides (Pink Poppy Mallow) has smaller flowers that are pink, rather than magenta. Another species, Callirhoe triangulata (Clustered Poppy Mallow), has leaves with a more triangular shape. A third species that is occasionally found within the state, Callirhoe digitata (Fringed Poppy Mallow), has a more erect habit with hairless stems and leaves. It is also useful to examine the carpels: While the flattened sides of the carpels of Purple Poppy Mallow have a reticulated surface, the sides of the carpels of other species in this genus are often smooth.
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Miss Chen
2017年08月06日
Description: This plant is a summer annual about 6-20" tall that branches frequently; large specimens can be as wide as they are tall, resembling a tumbleweed in shape. The rather stout stems are light green, terete to slightly angular, and glabrous. Alternate leaves occur along these stems that are 1-2" long and ¼-½" across; they are medium green, glabrous, and oblanceolate with margins that are coarsely crenate, shallowly lobed, or undulate. Small upper leaves often have smooth margins. The leaves are slightly succulent with a thick texture. The upper stems terminate in racemes of flowers about 2-10" long. Individual flowers are up to ¼" across, consisting of 4 lavender to white petals, 4 green sepals, 6 stamens, and a pistil with a single style. The oblong-lanceolate sepals are about ¼" long and glabrous, while the oblong petals spread widely during the short period when a flower is in bloom. The ascending pedicels are green and glabrous.
The blooming period occurs from mid-summer into the fall, lasting about 3 months. Only a few flowers are in bloom at the same time toward the apex of the racemes. The flowers are replaced by elongated seedpods (silicles) about ½-¾" long. Each seedpod has a lower segment (up to ¼" long) that is ovoid-cylindrical in shape, and an upper segment (up to ½" long) that is lanceoloid with a long tapering beak. Between these two segments, the seedpod is slightly constricted. The upper segment contains a single seed, while the lower segment contains either a single seed or none. At maturity, the upper segment of each seedpod becomes detached from the lower segment, while the lower segment persists on the dried remains of the plant. The upper segment can float on water, and it is often carried off by the waves of the lake or sea. Eventually, the upper segment is deposited at another beach, thereby introducing its seed to a new area. The seed of the lower segment usually germinates in proximity to its mother plant, colonizing the same beach.
Cultivation: The preference is full sun, moist to dry-mesic conditions, and very sandy soil. This plant also adapts to gravelly or rocky shorelines.
Range & Habitat: The native Sea Rocket is a rare plant in Illinois that is state-listed as 'threatened.' Its distribution is restricted to the shoreline of Lake Michigan in the NE section of the state (see Distribution Map). Habitats consist of sandy beaches and, to a lesser extent, gravelly or rocky shorelines. Outside of the state, Sea Rocket can be found along the shore lines of other Great Lakes (except the northernmost areas); a closely related subspecies of Sea Rocket is also found along the Atlantic coast.
Faunal Associations: Very little is known about floral-faunal relationships for this plant. Similar to other flowering plants in the Mustard family, Sea Rocket's flowers are probably cross-pollinated by small bees, flies, beetles, and small to medium-sized butterflies. There is a native flea beetle, Phyllotreta chalybeipennis, that feeds primarily, if not exclusively, on the foliage of Sea Rocket: its larvae form mines through the leaves. Other flea beetles that feed on the foliage of this plant include Phyllotreta crucifera (introduced from Europe), Phyllotreta punctulata, and Phyllotreta striolata (Clark et al., 2004). Larvae of a moth, the Rubbed Dart (Euxoa detersa), also referred to as the Sandhill Cutworm, feed primarily on the underground parts of Sea Rocket and many other plants in sandy areas (Covell, 1984/2005).
Photographic Location: A sandy beach at Indiana Dunes State Park in NW Indiana.
Comments: This member of the Mustard family is quite unique and easy to identify: it has slightly succulent leaves and unusual seedpods with 2 segments. Sea Rocket is a pioneer species of sandy beaches, colonizing areas that only a few plant species can tolerate. Because its succulent leaves can store water, it is able to withstand the desiccating effect of sunlight and sand. The root system helps to bind and stabilize the sand, while the decayed remnants of foliage add organic material and nutrients to the impoverished soil. This enables other plants to colonize the beach, beginning the process of ecological succession.
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Miss Chen
2017年08月06日
Description: This perennial plant is 1-3½' tall and unbranched, except near the apex where the flowering stems occur. The stems are round and covered with fine white hairs. They are initially green, but often become brown with age. The alternate leaves are up to 4" long and 1½" across. They are sessile against the stem toward the top, but have short petioles near the bottom. These leaves are lanceolate, smooth or sparingly dentate, grey- or yellow-green, and finely pubescent. The smaller leaves near the flowerheads are much reduced in size and linear. Sometimes there are small leaves appearing in the upper axils of the larger leaves along the central stem.
The upper stems terminate in small corymbs of flowerheads. These flowerheads consist of 7-21 small creamy white florets. A floret is narrowly tubular with 5 small lobes and a protruding divided style. Each flowerhead is subtended by a cylinder of narrow green bracts; it is a little less than ½" long. The blooming period occurs during late summer or early fall, and lasts about a month. The achenes are long and cylindrical, grey or light brown, and have tufts of white hair (or sometimes tawny hair). These tufts of hair are often more striking in appearance than the flowers. Seed distribution is provided by the wind. The root system consists of a central taproot that can run deep into the ground. Sometimes, this plant will tiller at the base, sending up multiple stems from the taproot. However, it doesn't reproduce vegetatively by means of rhizomes, unlike many other prairie plants.
Cultivation: The preference is full sun and dry conditions; a little shade is also tolerated. This plant prefers poor soil that contains too much clay, sand, or gravel, and it can thrive on slopes. Its toleration of drought is better than most plants in the tallgrass prairie. The leaves may turn yellow and start to shrivel away toward the end of the year, but this is normal. This plant doesn't spread aggressively.
Range & Habitat: The native False Boneset occurs occasionally in central and northern Illinois; in many areas of southern Illinois, it is uncommon or absent (see Distribution Map). Habitat includes dry upland areas of black soil prairies, gravel prairies, dolomite prairies, clay prairies, hill prairies, bluffs, limestone glades, open woodlands, and sandy savannas. False Boneset doesn't form large colonies, but is more likely to occur as sporadic plants. In moist areas with rich soil, it has trouble competing with taller, more aggressive forbs and grasses.
Faunal Associations: Bumblebees, leaf-cutting bees (Megachile spp.), Halictid bees, and other bees visit the flowerheads for nectar and pollen (Mitchell, 1960/1962; Moure & Hurd, 1987). Butterflies, skippers, and probably other insects visit the flowerheads for nectar and/or pollen too. The caterpillars of some flower moths feed destructively on the flowerheads and developing seeds; they include such species as Schinia trifascia (Three-lined Flower Moth), Schinia oleagina (Oleagina Flower Moth), and Schinia grandimedia (False Boneset Flower Moth). The last moth occurs in areas that lie mostly west of Illinois. Other insects feeders include Lygus lineolaris (Tarnished Plant Bug) and other polyphagous stink bugs, Aphis coreopsidis (an aphid), and larvae of a Noctuid moth, Dichagyris grotei (Panzer, 2000; Vestal, 1913; Hottes & Frison, 1931). In addition, such grasshoppers as Melanoplus confusus (Little Pasture Grasshopper), Melanoplus differentialis (Differential Grasshopper), Melanoplus keeleri (Keeler's Grasshopper), and Melanoplus discolor (Contrasting Spur-throated Grasshopper) feed on False Boneset. The last grasshopper is monophagous on this plant, although it occurs in areas that lie west of Illinois (Campbell et al., 1974; Joern, 1985; Brust et al., 2008). Mammalian herbivores browse on False Boneset occasionally when little else is available, but its foliage is bitter and overall food value is low. In pastures, False Boneset is considered an 'increaser' because livestock are not particularly fond of it.
Photographic Location: The photographs were taken at Meadowbrook Park in Urbana, Illinois.
Comments: False Boneset is similar in appearance to Tall Boneset (Eupatorium altissimum). However, the former plant has alternate leaves along its stems with only one conspicuous vein, while the latter has opposite leaves with three conspicuous veins. An older scientific name for False Boneset is Kuhnia eupatorioides.
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Miss Chen
2017年08月06日
Description: This perennial plant is up to 1½' tall and 3' across. One or more stems originate from the root system of each plant; these stems branch occasionally and they are ascending to widely spreading. The stems are light green to light purple and terete; for var. bracteata they are either pubescent or hairy, while for var. glabrescens they are glabrous. Alternate trifoliate leaves occur at intervals along these stems. Individual leaflets are 1–3" long and ½–1" across; they are usually oblanceolate in shape, but sometimes they are broadly elliptic or rhombic-elliptic. Leaf margins are smooth (entire). The leaf surfaces are grayish green; for var. bracteata they are appressed-hairy, while for var. glabrescens they are glabrous (Mohlenbrock, 2002). Leaf venation is pinnate. The trifoliate leaves are usually sessile or nearly so; less often, they have pedicels up to 1½" long. At the base of each trifoliate leaf (or its pedicel), there is a pair of leafy stipules; sometimes these stipules are early-deciduous and absent. These stipules can be highly variable in size (less than ¼" to 1½" long); they are sessile and usually lanceolate in shape with smooth margins. Like the leaflets, the stipules are grayish green and appressed hairy to glabrous, depending on the variety. The upper and outer stems of this plant often terminate in racemes of flowers about 3-9" long. These racemes are widely spreading and they are either held above the ground or they sprawl across it. The pedicellate flowers of these racemes face upward toward the light.
Individual flowers are about 1" long and a little less across; they have a typical pea-like floral structure consisting of an upright banner (1 petal) and a pair of wings (2 petals) that enclose the keel (2 petals). These petals are white to pale yellow (more or less cream-colored) and hairless. In addition to a corolla consisting of 5 petals, each flower has a short-tubular calyx with 4-5 triangular teeth, 10 stamens, and a pistil with a single style. The calyx is light green to light purple and less than ½" long; depending on the variety of this plant, it is either appressed-hairy or glabrous. The pedicels of the flowers are about ¾–1½" long, light green to light purple, and either hairy or glabrous. At the bases of these pedicels, there occurs solitary floral bracts that are about ½–1" long, lanceolate in shape, smooth along their margins, and sessile; they are similar to the stipules. The blooming period occurs during mid- to late spring for about 3 weeks. Afterwards, fertile flowers are replaced by seedpods that are 1-2" long, short-oblongoid in shape, slightly flattened, and mostly hollow inside. These seedpods have conspicuous beaks at their tips. Immature seedpods are light green and short-pubescent to glabrous; they become black at maturity. Later in the year, an entire plant may break off at its base, and roll around in the wind as a means of dispersing its seeds. Each seedpod divides into 2 parts to release its seeds; typically there are 5-20 seeds per seedpod. Individual seeds are about 4 mm. long, light brown to black, reniform (kidney-shaped), and glabrous. The root system consists of a stout taproot.
Cultivation: The preference is full sun, mesic to dry conditions, and soil containing some sand or loam. Cream Wild Indigo prefers open areas where there is reduced competition from taller vegetation. While it is possible to cultivate this plant in the garden using seeds or transplants, it develops slowly as most vegetative growth occurs during the cool weather of spring after the danger of hard frost has passed. Mature plants can be difficult to transplant because of their deep taproots.
Range & Habitat: The native Cream Wild Indigo occurs in scattered locations throughout Illinois (see Distribution Map), but it is uncommon, except at high quality sites. The typical variety, Baptisia bracteata bracteata, is more common in Illinois than Baptisia bracteata glabrescens. Natural habitats include mesic to dry black soil prairies, sand prairies, cemetery prairies, railroad prairies, open rocky woodlands, and sandy savannas. Occasional wildfires are beneficial in maintaining populations of this plant.
Faunal Associations: This plant is cross-pollinated primarily by queen bumblebees after they emerge from hibernation during the spring. Worker bumblebees appear somewhat later. Other long-tongued bees that have been observed to visit the flowers include a digger bee (Synhalonia speciosa) and mason bee (Osmia bucephala bucephala). These insects usually seek nectar from the flowers, although they sometimes collect pollen (Robertson, 1929). Other insects feed on the leaves, seeds, and other parts of Cream Wild Indigo and other Baptisia spp. These species include the larvae of such skippers as the Wild Indigo Duskywing (Erynnis baptisiae) and Hoary Edge (Achalarus lyciades), the larvae of such moths as the Three-lined Grapholita (Grapholita tristrigana) and Black-spotted Prominent (Dasylophia anguina), and the larvae of such butterflies as the Frosted Elfin (Callophrys irus), Orange Sulphur (Colias eurytheme), and Marine Blue (Leptotes marina); see Bouseman et al. (2006), Miller (1987), Wagner (2005), and Bouseman & Sternburg (2001). Another insect feeder is the Wild Indigo Weevil (Apion rostrum); the adults feed destructively on the flowers and leaves, while the larvae feed on the seeds (Sauer, 2005). Other insects that use Cream Wild Indigo and other Baptisia spp. as host plants include a leaf beetle (Pachybrachis luridus), seed-eating broad-headed bugs (Alydus spp.), oligophagous thrips (Neohydatothrips baptisiae), Keeler's Grasshopper (Melanoplus keeleri luridus), and other grasshoppers (Melanoplus spp., etc.); see Clark et al. (2004), Schaefer (1980), Stannard (1968), and Campbell et al. (1974). Cream Wild Indigo is not normally bothered by mammalian herbivores because its foliage is toxic. When horses and cattle eat sufficient quantities of this plant, as well as other Baptisia spp. that may be present, they can become seriously poisoned.
Photographic Location: The photographs were taken at the Loda Cemetery Prairie in Iroquois County, Illinois. The photographed plants are the typical variety of Cream Wild Indigo.
Comments: This is one of the earliest plants to bloom in the prairie, and it is quite showy and attractive. With the exception of the Blue Wild Indigo (Baptisia australis), other Baptisia spp. that occur in Illinois bloom later in the year. This latter species is rare in natural areas of the state, although it is relatively common in cultivation because of the showy blue flowers. Another species, White Wild Indigo (Baptisia alba macrophylla), is a taller plant with white flowers. It differs from Cream Wild Indigo by having erect racemes of flowers, rather than racemes that are widely spreading or sprawl across the ground. The foliage of this latter species is glabrous. Yellow Wild Indigo (Baptisia tinctoria) is also rare in natural areas of the state, occurring in sand prairies and sandy savannas in Kankakee County. This species is about the same height as Cream Wild Indigo, but its flowers are smaller in size and more yellow, while its foliage is glabrous. Unlike the preceding species of this genus, Yellow Wild Indigo doesn't produce flowers in elongated racemes. Another scientific name of Cream Wild Indigo is Baptisia leucophaea.
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Miss Chen
2017年08月06日
Description: This herbaceous perennial plant sends up one or more leafy stems (usually several) that branch abundantly, forming a bushy appearance. The stems are light green or whitish green, terete, glabrous, and sometimes glaucous. Alternate trifoliate leaves occur along the entire length of each stem, changing little in size. Their leaflets are ¾–1½" long and about one-half to one-third as much across; they are oblanceolate to obovate in shape and entire (toothless) along their margins. The leaflet bottoms are wedge-shaped (cuneate), while their tips are more rounded and blunt. The upper and lower leaflet surfaces are grayish green, medium green, or bluish green; they are glabrous. The leaflets have prominent central veins; their surfaces are more or less inclined (angled upward) along both sides of these veins. The leaflets are sessile or nearly so. The petioles of the trifoliate leaves are up to ½" long; they are light green and glabrous. At the bases of petioles, there are pairs of leafy stipules. Individual stipules are up to ¾" long, although they are typically about ¼" long. The stipules are linear-lanceolate to oblong-lanceolate in shape and entire along their margins. The upper stems terminate in erect racemes of flowers about ½–1½' long; the flowers are moderately distributed along these racemes. The central stalks of these racemes are light green or whitish green, terete, glabrous, and sometimes glaucous. Each flower is about 1" long, consisting of a tubular calyx with 4-5 short teeth, a corolla consisting of 5 petals, 10 stamens, and a pistil with a single style. The calyx is light green or grayish green and glabrous; it is shorter than the corolla. The corolla is pale blue to dark blue; it has a typical pea-like floral structure, consisting of an upright banner and a pair of forward-projecting wings that enclose a keel containing the reproductive organs. The slender pedicels of the flowers are up to ½" long and ascending; at the bases of these pedicels, there are solitary leafy bracts up to 1¼" long that are linear-lanceolate in shape and early-deciduous. The blooming period occurs during mid- to late spring for about 3 weeks. There is no noticeable floral scent.
Afterwards, fertile flowers are replaced by inflated glabrous seedpods that become up to 2½" long and ¾" across. These seedpods are short-oblongoid in shape with slender beaked tips. Immature seedpods are light green or grayish green, but they become black at maturity, when they split in two to release their seeds. Each healthy seedpod contains 25-50 seeds, although fewer seeds may occur because of predation or adverse weather conditions. Individual seeds are 2–2.5 mm. long, kidney-shaped (reniform), and light to dark brown. The root system consists of a branching taproot that often forms clonal offsets.
Cultivation: The preference is full sun, mesic to dry conditions, and a slightly acidic soil that is gravelly or rocky. Blue Wild Indigo readily adapts to fertile loamy soil in gardens, but in naturalistic settings it may have difficulty competing with other plants. Blue Wild Indigo is somewhat slow in becoming established, but it is not difficult to cultivate. Once this plant becomes established, it is very tolerant of drought and long-lived. Like many other legumes, its root system binds nitrogen to the soil via symbiotic bacteria.
Range & Habitat: Blue Wild Indigo may be native to NE Illinois in the Chicago area, or it could be a horticultural escape (see Distribution Map). In either case, this plant is extremely rare, and perhaps extirpated from the state as wild populations have not been observed in many years. The primary range of Blue Wild Indigo extends northward to the Ohio River, although isolated populations of this plant have been found further to the north in several states. A dwarf variety of this species also occurs further to the west. Habitats include rocky open woodlands, gravel prairies, and rocky banks of rivers. Occasional wildfires are probably beneficial in maintaining populations of this plant by reducing competition from woody vegetation
Faunal Associations: Queen bumblebees are the primary pollinators of the flowers, where they feed on nectar primarily. Other insects feed destructively on the leaves, developing seeds, and other parts of Blue Wild Indigo and other Wild Indigos (Baptisia spp.). These species include larvae of two moths, the Three-lined Grapholita (Grapholita tristrigana) and Black-rimmed Prominent (Dasylophia anguina), larvae of two skippers, the Wild Indigo Duskywing (Erynnis baptisiae) and Hoary Edge (Achalarus lyciades), and larvae of three butterflies, the Frosted Elfin (Callophrys irus), Marine Blue (Leptotes marina), and Orange Sulfur (Colias eurytheme); see Miller (1987), Covell (1984/2005), Bouseman et al. (2006), and Bouseman & Sternburg (2001). Other insect feeders include the Wild Indigo Weevil (Apion rostrum) and another weevil (Tychius sordidus). The larvae of these weevils feed on the developing seeds, while the adults feed on the leaves and flowers. The Ash-Gray Blister Beetle (Epicauta fabricii) feeds on the flowers and young seed pods, while two leaf beetles, Pachybrachis luridus and Pachybrachis trinotatus, feed on the leaves of Wild Indigos. The Lupine Bug (Megalotomus quinquespinosus) and other broad-headed bugs (Alydus spp.) feed on the seeds. The thrips, Neohydatothrips baptisiae, also uses these plants as sources of food. See Sauer (2005), Evans et al. (1989), Clark et al. (2004), Schaeffer (1980), and Stannard (1968) for more information. Mammalian herbivores usually avoid the consumption of Blue Wild Indigo and other Wild Indigos because their foliage is somewhat toxic.
Photographic Location: The above photographs were taken from the webmaster's wildflower garden in Urbana, Illinois.
Comments: This is a favorite garden plant because of its showy flowers and attractive foliage. There is a dwarf variety of Blue Wild Indigo, Baptisia australis minor, that occurs in prairies of the southern and central Great Plains. This variety is smaller in overall size, but it has slightly larger fragrant flowers. Sometimes this variety is classified as a distinct species, Baptisia minor. Both the typical variety and the dwarf variety have blue flowers. Other Wild Indigos (Baptisia spp.) can be distinguished by their differently colored flowers, varying from white to yellow. There are also some differences in the characteristics of their leaves, stipules, inflorescences, and growth form, making them fairly easy to differentiate. Lupines (Lupinus spp.) can be distinguished from Wild Indigos by the greater number of leaflets (more than 3) in their palmately compound leaves. Another interesting difference is the lack of nectaries in the flowers of lupines.
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Miss Chen
2017年08月06日
Description: This herbaceous perennial plant is about 3-6' tall and forms an erect, sparsely branched bush, although it is herbaceous. The stout central stem and upper side stems are smooth, light green or reddish purple, and glaucous. The compound leaves are trifoliate. They are usually greyish green or blue green, and hairless. Each leaflet is ovate or oblanceolate and pointed at both ends, with smooth margins, and about 2" long and ¾" across. The white flowers occur in erect spike-like racemes up to 2' long and are quite showy. They are typical pea flowers in overall structure, and about 1" long. There is no floral scent. The blooming period occurs from late spring to mid-summer and lasts about 1-1½ months. The flowers are replaced by large oblong seedpods, which are also rather showy. They are about 2" long and initially green, but later turn black. There is a stout deep taproot, and rhizomes that may form vegetative offsets. Once established, White Wild Indigo grows very quickly during the spring – it often towers above the surrounding plants by blooming time.
Cultivation: The preference is full sun and moist to slightly dry soil. The soil can contain significant amounts of loam, clay, gravelly material, or sand. This plant is not fussy about growing conditions, and is easy to grow. However, it dislikes alkaline soil and may fail to bloom in shady conditions. Like other wild indigos, this plant may take several years to reach blooming size, but it is long-lived. The roots increase nitrogen levels in the soil.
Range & Habitat: The native White Wild Indigo is widely distributed and occurs in almost every county of Illinois, but it is usually uncommon (see Distribution Map). In a few areas that are scattered around the state, this plant is locally common. Some local populations may be escaped cultivated plants, or the result of restoration efforts. Habitats include moist to dry black soil prairies, sand prairies, thickets, edges of marshes and sandy marshes, borders of lakes, limestone glades, and dry clay hills. White Wild Indigo is typically found in less disturbed habitats, partly because of limited seed dispersion. Occasional wildfires are readily tolerated.
Faunal Associations: Worker bumblebees pollinate the flowers. The caterpillars of some skippers and butterflies occasionally feed on the foliage, including Erynnis baptisiae (Wild Indigo Duskywing), Achelerus lyciades (Hoary Edge), Colias cesonia (Southern Dogface), and Colias eurythema (Orange Sulfur). The caterpillars of the moth Dasylophus anguina (Black-spotted Prominent) can also be found on the foliage. Another insect, Apion rostrum (Wild Indigo Weevil), feeds on this plant and other Baptisia spp. The adult weevils eat both the leaves and flowers, while their grubs stay in the pods and eat the seeds. Because White Wild Indigo is poisonous, it is not much bothered by mammalian herbivores. If cattle, horses, or other kinds of livestock consume sufficient quantities of this plant, they can be seriously poisoned.
Photographic Location: The photographs of the racemes and leaf close-up were taken at Meadowbrook Park in Urbana, Illinois.
Comments: Large specimens of this wildflower are very striking while they are in bloom. White Wild Indigo is considerably taller than the related Baptisia bracteata (Cream Wild Indigo), which has spreading racemes of flowers that bloom earlier in the year. Other species of this genus in Illinois have yellow or blue-violet flowers. Another scientific name of White Wild Indigo is Baptisia leucantha.
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