文章
Dummer. ゛☀
2017年07月15日
Family - Ranunculaceae
Stems - Absent. Leaves and flowers from a small caudex and thickened roots.
Leaves - Few to many leaves from the base of the plant, petiolate. Leaves at anthesis from previous year. New seasons leaves appearing after the flowers. Petioles to +/-15cm long, purplish, sericeous, flattened or with a shallow groove adaxially. Blades 3-lobed, to +/-8cm long, +/-10cm broad, green when fresh, overwintering, mottled or purple, sericeous below (sparse), glabrous above. Lobes acute, entire, broadly ovate. Lateral lobes oblique at the base.
Inflorescence - One to many flowers arising from the base of the plant. Bracts enclosing the flower buds purple-scarious, glabrous, to +/-1.5cm long, acute. Peduncles quickly expanding in flower to +/-9cm long, purplish-green, sericeous, with long hairs, mostly terete.
Flowers - Sepals petaloid, 6, typically blue but also white or rose, to 1.5cm long, +/-7mm broad, glabrous, mostly rounded at the apex, oblong, distinct. Stamens many (+/-40), arising from beneath the carpels, mostly erect. Filaments white, glabrous, slightly thickened at the apex, to 6mm long. Anthers white to pale yellow, 1mm long and broad. Carpels many, green, to 3mm long in flower (total), sericeous (pilose) mostly in the basal 2/3. Receptacle pilose. Floral bracts 4, green, sericeous externally, glabrous internally, entire, to 1cm long, to 5mm broad, elliptic to lanceolate, rounded to acute at the apex, distinct.
Flowering - February - April.
Habitat - Rich, north-facing slopes of well drained soils. Typically on limestone.
Origin - Native to U.S. (and Europe?)
Other info. - This attractive species can be found mainly in the eastern half of the state. The plant is easy to identify because of its three-lobed leaves. No other plant in the state resembles it. The typical flower color is blue but the white-flowered form is common also. Here is a bluish group of flowers:
Another species, H. americana (DC.) Ker, is similar but has leaves which are rounded at the apices. This latter species is less common in Missouri.
To read about the medicinal uses of Hepatica see the Hepatica americana page.
Stems - Absent. Leaves and flowers from a small caudex and thickened roots.
Leaves - Few to many leaves from the base of the plant, petiolate. Leaves at anthesis from previous year. New seasons leaves appearing after the flowers. Petioles to +/-15cm long, purplish, sericeous, flattened or with a shallow groove adaxially. Blades 3-lobed, to +/-8cm long, +/-10cm broad, green when fresh, overwintering, mottled or purple, sericeous below (sparse), glabrous above. Lobes acute, entire, broadly ovate. Lateral lobes oblique at the base.
Inflorescence - One to many flowers arising from the base of the plant. Bracts enclosing the flower buds purple-scarious, glabrous, to +/-1.5cm long, acute. Peduncles quickly expanding in flower to +/-9cm long, purplish-green, sericeous, with long hairs, mostly terete.
Flowers - Sepals petaloid, 6, typically blue but also white or rose, to 1.5cm long, +/-7mm broad, glabrous, mostly rounded at the apex, oblong, distinct. Stamens many (+/-40), arising from beneath the carpels, mostly erect. Filaments white, glabrous, slightly thickened at the apex, to 6mm long. Anthers white to pale yellow, 1mm long and broad. Carpels many, green, to 3mm long in flower (total), sericeous (pilose) mostly in the basal 2/3. Receptacle pilose. Floral bracts 4, green, sericeous externally, glabrous internally, entire, to 1cm long, to 5mm broad, elliptic to lanceolate, rounded to acute at the apex, distinct.
Flowering - February - April.
Habitat - Rich, north-facing slopes of well drained soils. Typically on limestone.
Origin - Native to U.S. (and Europe?)
Other info. - This attractive species can be found mainly in the eastern half of the state. The plant is easy to identify because of its three-lobed leaves. No other plant in the state resembles it. The typical flower color is blue but the white-flowered form is common also. Here is a bluish group of flowers:
Another species, H. americana (DC.) Ker, is similar but has leaves which are rounded at the apices. This latter species is less common in Missouri.
To read about the medicinal uses of Hepatica see the Hepatica americana page.
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文章
Dummer. ゛☀
2017年07月15日
Family - Astercaeae
Ray flowers - Absent.
Flowering - July - November.
Habitat - Rocky open woods, eroded slopes, thickets, waste ground, disturbed sites, fields, roadsides, railroads.
Origin - Native to U.S.
Other info. - This tall and easily identifiable species is found throughout Missouri. The plant is a pioneer and is typically the first plant to sprout after a soil disturbance or fire. This species grows fast and can reach a height of 3m, although it can flower when quite small, especially if it is mowed or is growing in an area with poor soil.
Natives used a tea made from the plant to many ailments including diarrhea, cystitis, and dropsy.
Ray flowers - Absent.
Flowering - July - November.
Habitat - Rocky open woods, eroded slopes, thickets, waste ground, disturbed sites, fields, roadsides, railroads.
Origin - Native to U.S.
Other info. - This tall and easily identifiable species is found throughout Missouri. The plant is a pioneer and is typically the first plant to sprout after a soil disturbance or fire. This species grows fast and can reach a height of 3m, although it can flower when quite small, especially if it is mowed or is growing in an area with poor soil.
Natives used a tea made from the plant to many ailments including diarrhea, cystitis, and dropsy.
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文章
Dummer. ゛☀
2017年07月14日
Family - Asteraceae
Ray flowers - Mostly absent.
Flowering - May - September.
Habitat - Fields, pastures, prairies, rocky open ground, waste ground, disturbed sites, roadsides, railroads.
Origin - Native to U.S.
Other info. - This small, spreading species can be found throughout Missouri. The plant is easy to ID in the field because of its lax growth habit, silvery-grey appearance, and small flowerheads. This species has a bitter taste and is avoided by livestock. It is considered a weed by most.
Ray flowers - Mostly absent.
Flowering - May - September.
Habitat - Fields, pastures, prairies, rocky open ground, waste ground, disturbed sites, roadsides, railroads.
Origin - Native to U.S.
Other info. - This small, spreading species can be found throughout Missouri. The plant is easy to ID in the field because of its lax growth habit, silvery-grey appearance, and small flowerheads. This species has a bitter taste and is avoided by livestock. It is considered a weed by most.
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文章
Dummer. ゛☀
2017年07月14日
Family - Asteraceae
Disk flowers - No info. yet.
Flowering - June - November.
Habitat - Fields, disturbed sites, waste ground, roadsides, railroads.
Origin - Native to U.S.
Other info. - This weedy species can be found throughout Missouri. It spreads rapidly and is one of the most common plants in the state. The more mature plants are apically branched but the plant can flower when quite small and unbranched.
The plant was traditionally used to treat many ailments such as diarrhea, kidney stones, diabetes, and nosebleeds. Many people are allergic to its pollen and can get a reaction just by handling the plant. IT is one of the leading causes of fall allergies. Livestock animals seem to ignore the plant because of its bitter taste.
Disk flowers - No info. yet.
Flowering - June - November.
Habitat - Fields, disturbed sites, waste ground, roadsides, railroads.
Origin - Native to U.S.
Other info. - This weedy species can be found throughout Missouri. It spreads rapidly and is one of the most common plants in the state. The more mature plants are apically branched but the plant can flower when quite small and unbranched.
The plant was traditionally used to treat many ailments such as diarrhea, kidney stones, diabetes, and nosebleeds. Many people are allergic to its pollen and can get a reaction just by handling the plant. IT is one of the leading causes of fall allergies. Livestock animals seem to ignore the plant because of its bitter taste.
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文章
Dummer. ゛☀
2017年07月13日
Family - Araliaceae
Stems - To +/- 10m tall, woody, with spines or prickles.
Leaves - Large, to 1m long, bipinnately compound. The leaflets toothed, ovate.
Inflorescence - Large, +30cm wide, +30cm tall, many flowered.
Flowers - Small, white. Petals distinct, 5, reflexed. Sepals 5.
Fruits - Black when mature, 5-8mm in diameter.
Flowering - July - September.
Habitat - Moist soils, woods, wooded slopes. Sometimes cultivated.
Origin - Native to U.S.
Stems - To +/- 10m tall, woody, with spines or prickles.
Leaves - Large, to 1m long, bipinnately compound. The leaflets toothed, ovate.
Inflorescence - Large, +30cm wide, +30cm tall, many flowered.
Flowers - Small, white. Petals distinct, 5, reflexed. Sepals 5.
Fruits - Black when mature, 5-8mm in diameter.
Flowering - July - September.
Habitat - Moist soils, woods, wooded slopes. Sometimes cultivated.
Origin - Native to U.S.
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文章
Dummer. ゛☀
2017年07月13日
Family - Simaroubaceae
Stems - No info. yet.
Leaves - No info. yet.
Inflorescence - No info. yet.
Flowers - Staminate flowers - Fetid. Pedicels to 6mm long, sparse pubescent. Calyx tube 1mm long, 2mm broad, 5-lobed. Lobes acute, .8mm long. Petals 5, cupped, greenish-white, 3.5mm long, alternating with the calyx lobes, 3.5mm long, 1.2mm broad, densely pubescent near the base abaxially, also pubescent on the margins and some adaxially. Stamens 10, erect to spreading. Filaments densely pubescent (at least in the basal 1/2), white, 2.5mm long. Anthers yellow, 1.2mm long.
Flowering - May - June.
Habitat - Waste ground, along streams, base of bluffs, thickets, roadsides, railroads, commonly cultivated.
Origin - Native to Asia.
Other info. - This common tree can be found scattered throughout Missouri in the wild and is widely cultivated. The plant grows fast and is quite a noxious weed. It also grows well from seed. It should not be willingly spread in the wild. Trees can be staminate, pistillate, or perfect. Only the staminate plants have a bad odor when flowering.
A. altissima has been used medicinally in the past. A tea made from the bark is used to treat diarrhea, dysentery, and tapeworms. Large doses of the tea, however, may be toxic. The tree has also been shown to have antimalarial properties. In China, some cases of hay fever have been attributed to the plant.
The wood of this species can be mixed with other hardwoods for pulp in the paper-making process. Sap from the wood has been known to give cause rashes in some people.
Stems - No info. yet.
Leaves - No info. yet.
Inflorescence - No info. yet.
Flowers - Staminate flowers - Fetid. Pedicels to 6mm long, sparse pubescent. Calyx tube 1mm long, 2mm broad, 5-lobed. Lobes acute, .8mm long. Petals 5, cupped, greenish-white, 3.5mm long, alternating with the calyx lobes, 3.5mm long, 1.2mm broad, densely pubescent near the base abaxially, also pubescent on the margins and some adaxially. Stamens 10, erect to spreading. Filaments densely pubescent (at least in the basal 1/2), white, 2.5mm long. Anthers yellow, 1.2mm long.
Flowering - May - June.
Habitat - Waste ground, along streams, base of bluffs, thickets, roadsides, railroads, commonly cultivated.
Origin - Native to Asia.
Other info. - This common tree can be found scattered throughout Missouri in the wild and is widely cultivated. The plant grows fast and is quite a noxious weed. It also grows well from seed. It should not be willingly spread in the wild. Trees can be staminate, pistillate, or perfect. Only the staminate plants have a bad odor when flowering.
A. altissima has been used medicinally in the past. A tea made from the bark is used to treat diarrhea, dysentery, and tapeworms. Large doses of the tea, however, may be toxic. The tree has also been shown to have antimalarial properties. In China, some cases of hay fever have been attributed to the plant.
The wood of this species can be mixed with other hardwoods for pulp in the paper-making process. Sap from the wood has been known to give cause rashes in some people.
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文章
Dummer. ゛☀
2017年07月12日
Family - Caprifoliaceae
Stems - Woody, multiple. A shrub to 2m tall. Twigs glabrous.
Inflorescence - Terminal, dome-shaped cymes. Dense and appearing as a compound umbel, with copper-colored glands.
Flowers - Corolla whitish, 5-lobed(petals united), to 9mm broad. Lobes 3mm long and wide. Stamens 5, borne at base of corolla tube, well exserted, erect. Filaments to 4mm long, glabrous. Anthers yellow, to 1.2mm long. Style thick, .7mm long. Calyx tube to 2mm long, 1.2mm in diameter, glabrous, 5-lobed. Lobes to .8mm broad, .5mm long. Fruits purplish-black, ellipsoid to globose, to +1cm long, single-seeded (drupes).
Flowering - April - May.
Habitat - Low woods, moist soils, slopes, thickets. Also cultivated.
Origin - Native to U.S.
Other info. - This species can be found throughout Missouri but is apparently absent from a few counties in the extreme northwest corner of the state. The plant can be identified by its opposite leaves (which resemble those of the genus Prunus or Pyrus), its tan, thin leaf buds, and its big clusters of white flowers.
The fruits of this species are edible. The plant has been cultivated for some time and would make a good garden specimen plant.
Stems - Woody, multiple. A shrub to 2m tall. Twigs glabrous.
Inflorescence - Terminal, dome-shaped cymes. Dense and appearing as a compound umbel, with copper-colored glands.
Flowers - Corolla whitish, 5-lobed(petals united), to 9mm broad. Lobes 3mm long and wide. Stamens 5, borne at base of corolla tube, well exserted, erect. Filaments to 4mm long, glabrous. Anthers yellow, to 1.2mm long. Style thick, .7mm long. Calyx tube to 2mm long, 1.2mm in diameter, glabrous, 5-lobed. Lobes to .8mm broad, .5mm long. Fruits purplish-black, ellipsoid to globose, to +1cm long, single-seeded (drupes).
Flowering - April - May.
Habitat - Low woods, moist soils, slopes, thickets. Also cultivated.
Origin - Native to U.S.
Other info. - This species can be found throughout Missouri but is apparently absent from a few counties in the extreme northwest corner of the state. The plant can be identified by its opposite leaves (which resemble those of the genus Prunus or Pyrus), its tan, thin leaf buds, and its big clusters of white flowers.
The fruits of this species are edible. The plant has been cultivated for some time and would make a good garden specimen plant.
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文章
Dummer. ゛☀
2017年07月12日
Family - Liliaceae
Stems - No info yet.
Leaves - No info yet.
Inflorescence - No info yet.
Flowers - No info yet.
Flowering - April - May.
Habitat - Mesic bottomland forests, mesic upland forests along streams, bottoms, ravines.
Origin - Native to U.S.
Other info. - This attractive species can be found in a handful of eastern Missouri counties. The plant is easy to identify becasue of its big, rhombic leaves and nodding white flowers. This is the largest species of Trillium in Missouri.
In good habitat the plant can be found in large colonies. It does not transplant well and should be left alone in the wild.
Stems - No info yet.
Leaves - No info yet.
Inflorescence - No info yet.
Flowers - No info yet.
Flowering - April - May.
Habitat - Mesic bottomland forests, mesic upland forests along streams, bottoms, ravines.
Origin - Native to U.S.
Other info. - This attractive species can be found in a handful of eastern Missouri counties. The plant is easy to identify becasue of its big, rhombic leaves and nodding white flowers. This is the largest species of Trillium in Missouri.
In good habitat the plant can be found in large colonies. It does not transplant well and should be left alone in the wild.
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文章
Dummer. ゛☀
2017年07月12日
Family - Caryophyllaceae
Stems - No info. yet.
Leaves - No info. yet.
Inflorescence - No info. yet.
Flowers - No info. yet.
Flowering - May - August.
Habitat - Fields, waste ground, railroads, roadsides.
Origin - Native to Europe.
Other info. - This weedy but striking species can be found scattered throughout Missouri but is infrequent. This species can be identified by its glabrous and glaucous stems, its opposite entire leaves, and its much inflated calices. The flowers of S. cucubalus only last for one day. They typically open at night and wilt when hit by strong sunlight. The petals of the flowers are deeply divided and give the appearance of being 10 petals instead of the actual 5.
Stems - No info. yet.
Leaves - No info. yet.
Inflorescence - No info. yet.
Flowers - No info. yet.
Flowering - May - August.
Habitat - Fields, waste ground, railroads, roadsides.
Origin - Native to Europe.
Other info. - This weedy but striking species can be found scattered throughout Missouri but is infrequent. This species can be identified by its glabrous and glaucous stems, its opposite entire leaves, and its much inflated calices. The flowers of S. cucubalus only last for one day. They typically open at night and wilt when hit by strong sunlight. The petals of the flowers are deeply divided and give the appearance of being 10 petals instead of the actual 5.
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文章
Dummer. ゛☀
2017年07月12日
Family - Caryophyllaceae
Stems - No info. yet.
Leaves - No info. yet.
Inflorescence - No info. yet.
Flowers - No info. yet.
Flowering - March - April.
Habitat - Fields, pastures, sandy open ground, waste ground.
Origin - Native to U.S.
Other info. - This little species can be found in the southern half of Missouri. The plant is easy to overlook but is quite striking while in flower, despite its minute size. S. decumbens is easy to ID because of its thin opposite leaves, white flowers, and decumbent stems.
Stems - No info. yet.
Leaves - No info. yet.
Inflorescence - No info. yet.
Flowers - No info. yet.
Flowering - March - April.
Habitat - Fields, pastures, sandy open ground, waste ground.
Origin - Native to U.S.
Other info. - This little species can be found in the southern half of Missouri. The plant is easy to overlook but is quite striking while in flower, despite its minute size. S. decumbens is easy to ID because of its thin opposite leaves, white flowers, and decumbent stems.
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文章
Dummer. ゛☀
2017年07月12日
Family - Loganiaceae
Stems - No info. yet.
Leaves - No info yet.
Inflorescence - No info yet.
Flowers - No info. yet.
Flowering - June - October.
Habitat - Open, sandy ground.
Origin - Native to U.S.
Other info. - This little species can be found in the "boot-heel" of Missouri and was also collected in Clark County in the extreme northeastern corner of the state. The plant is easy to ID because of its needle-like leaves and minute, white flowers.
Stems - No info. yet.
Leaves - No info yet.
Inflorescence - No info yet.
Flowers - No info. yet.
Flowering - June - October.
Habitat - Open, sandy ground.
Origin - Native to U.S.
Other info. - This little species can be found in the "boot-heel" of Missouri and was also collected in Clark County in the extreme northeastern corner of the state. The plant is easy to ID because of its needle-like leaves and minute, white flowers.
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文章
Dummer. ゛☀
2017年07月12日
Family - Rubiaceae
Stems - No info. yet.
Leaves - No info. yet.
Inflorescence - No info. yet.
Flowers - No info. yet.
Flowering - May - July.
Habitat - Acid soils along moist edges and bluffs of sandstone, sandy streambanks, in sphagnum moss, sandy bogs, low moist woods.
Origin - Native to U.S.
Other info. - This well known species can be found in the extreme eastern portion of the state. The plant is much more common in states to the east. M. repens produces the familiar red berries that can be seen on the forest floor throughout the winter. The berries, combined with the creeping stems and opposite, deep green leaves make this species easy tp identify in the field.
Stems - No info. yet.
Leaves - No info. yet.
Inflorescence - No info. yet.
Flowers - No info. yet.
Flowering - May - July.
Habitat - Acid soils along moist edges and bluffs of sandstone, sandy streambanks, in sphagnum moss, sandy bogs, low moist woods.
Origin - Native to U.S.
Other info. - This well known species can be found in the extreme eastern portion of the state. The plant is much more common in states to the east. M. repens produces the familiar red berries that can be seen on the forest floor throughout the winter. The berries, combined with the creeping stems and opposite, deep green leaves make this species easy tp identify in the field.
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文章
Dummer. ゛☀
2017年07月12日
Family - Asteraceae
Stems - No info. yet.
Leaves - No info. yet.
Involucre - No info. yet.
Ray flowers - Absent.
Disk flowers - No info. yet.
Flowering - July - October.
Habitat - Swampy woods, ditches, fence rows, pond margins.
Origin - Native to U.S.
Other info. - This vining species can be found in the southeast corner of Missouri. The plant is very easy to identify in the field because of its vining habit, opposite, sagittate leaves, and umbels of whitish flower heads. This is a weedy species which can grow very long very quickly. It is probably not the best choice to plant around a water garden. The plant is, however, frequently visited by many different types of flying insects. The genus Mikania is a large cosmopolitan genus confined mostly to the tropics.
Stems - No info. yet.
Leaves - No info. yet.
Involucre - No info. yet.
Ray flowers - Absent.
Disk flowers - No info. yet.
Flowering - July - October.
Habitat - Swampy woods, ditches, fence rows, pond margins.
Origin - Native to U.S.
Other info. - This vining species can be found in the southeast corner of Missouri. The plant is very easy to identify in the field because of its vining habit, opposite, sagittate leaves, and umbels of whitish flower heads. This is a weedy species which can grow very long very quickly. It is probably not the best choice to plant around a water garden. The plant is, however, frequently visited by many different types of flying insects. The genus Mikania is a large cosmopolitan genus confined mostly to the tropics.
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文章
Dummer. ゛☀
2017年07月12日
Family - Verbenaceae
Stems - No info. yet.
Leaves - No info. yet.
Inflorescence - No info. yet.
Flowers - No info. yet.
Flowering - May - October.
Habitat - Moist to wet areas, streambanks, pond margins.
Origin - Native to U.S., tropical America, Europe.
Other info. - This small species is found in only one or two Missouri counties. The prostrate nature of the plant, plus the obovate leaves and long peduncles, distinguish it from the other Missouri species, L. lanceolata Michx..
Stems - No info. yet.
Leaves - No info. yet.
Inflorescence - No info. yet.
Flowers - No info. yet.
Flowering - May - October.
Habitat - Moist to wet areas, streambanks, pond margins.
Origin - Native to U.S., tropical America, Europe.
Other info. - This small species is found in only one or two Missouri counties. The prostrate nature of the plant, plus the obovate leaves and long peduncles, distinguish it from the other Missouri species, L. lanceolata Michx..
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文章
Dummer. ゛☀
2017年07月11日
Family - Scrophulariaceae
Stems - No info. yet.
Leaves - No info. yet.
Inflorescence - No info. yet.
Flowers - No info. yet.
Flowering - April - October.
Habitat - Ponds, sloughs, ditches.
Origin - Native to U.S.
Other info. - This small aquatic species can be found in the eastern and southern portions of Missouri. It can be identified by its habitat, opposite leaves, short to absent pedicels, and globose fruits.
Stems - No info. yet.
Leaves - No info. yet.
Inflorescence - No info. yet.
Flowers - No info. yet.
Flowering - April - October.
Habitat - Ponds, sloughs, ditches.
Origin - Native to U.S.
Other info. - This small aquatic species can be found in the eastern and southern portions of Missouri. It can be identified by its habitat, opposite leaves, short to absent pedicels, and globose fruits.
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