文章
Dummer. ゛☀
2017年07月19日
Family - Solanaceae
Stems - To 1m tall, erect, herbaceous but can be fairly stout, widely branching, green but often purplish in strong sun, from thickened roots, mostly glabrous but with some strigose hairs on the newest growth, terete or angled, minutely winged from decurrent petiole tissue. Wings to .5mm broad, scabrous from strigose hairs and their enlarged bases.
Leaves - Alternate, petiolate. Petioles to +/-4cm long, winged by decurrent blade tissue or not. Blades typically ovate, acute, with wavy margins or a few coarse teeth (the teeth with rounded apices), to +/-10cm long, +/-7cm broad, sparse strigose above and below, deep dull green above, light green below.
Inflorescence - Loose pedunculate umbels or corymbs from the sides of the stem in the internodes. Peduncles to 3cm long, strigose, erect. Pedicels to 1cm long, strigose, spreading to erect in flower, nodding in fruit.
Flowers - Corolla white, 5-lobed, 1cm broad, glabrous. Lobes lanceolate-triangular, 4-5mm long, +/-2mm broad. Corolla tube green, -2mm long, glabrous. Stamens 5, adnate at the apex of the corolla tube, erect, exserted. Filaments green, 1-1.3mm long, with some cilia on margins. Anthers yellow, 2mm long, converging around the style. Ovary superior, green, glabrous, ovoid, 1.2mm long in flower. Style green, glabrous in the apical half, hispidulous in the basal half, 3mm long. Stigma globose-capitate. Calyx tube green, 1mm long, antrorse strigose externally, glabrous internally, 5-lobed. Lobes 2-3mm long, somewhat unequal, 1-1.3mm broad, subacute at the apex, subulate to linear-oblong. Fruit a globose berry to +/-7mm in diameter, blackish when mature, shiny or not. Seeds many.
Flowering - May - November.
Habitat - Waste ground, disturbed sites, open woods, pastures, roadsides, railroads.
Origin - Native to U.S.
Other info. - This is a very common toxic plant. It is in the same family as the tomato and potato. The plant is very variable in size and also in leaf shape but the description above is generally very good for the species. The petals of the corolla are typically white but can have shades of blue or purple.
The name S. americanum is debated and S. ptycanthum Dun. ex DC. may be a better name. S. nigrum var. virginicum L. is also used.
Stems - To 1m tall, erect, herbaceous but can be fairly stout, widely branching, green but often purplish in strong sun, from thickened roots, mostly glabrous but with some strigose hairs on the newest growth, terete or angled, minutely winged from decurrent petiole tissue. Wings to .5mm broad, scabrous from strigose hairs and their enlarged bases.
Leaves - Alternate, petiolate. Petioles to +/-4cm long, winged by decurrent blade tissue or not. Blades typically ovate, acute, with wavy margins or a few coarse teeth (the teeth with rounded apices), to +/-10cm long, +/-7cm broad, sparse strigose above and below, deep dull green above, light green below.
Inflorescence - Loose pedunculate umbels or corymbs from the sides of the stem in the internodes. Peduncles to 3cm long, strigose, erect. Pedicels to 1cm long, strigose, spreading to erect in flower, nodding in fruit.
Flowers - Corolla white, 5-lobed, 1cm broad, glabrous. Lobes lanceolate-triangular, 4-5mm long, +/-2mm broad. Corolla tube green, -2mm long, glabrous. Stamens 5, adnate at the apex of the corolla tube, erect, exserted. Filaments green, 1-1.3mm long, with some cilia on margins. Anthers yellow, 2mm long, converging around the style. Ovary superior, green, glabrous, ovoid, 1.2mm long in flower. Style green, glabrous in the apical half, hispidulous in the basal half, 3mm long. Stigma globose-capitate. Calyx tube green, 1mm long, antrorse strigose externally, glabrous internally, 5-lobed. Lobes 2-3mm long, somewhat unequal, 1-1.3mm broad, subacute at the apex, subulate to linear-oblong. Fruit a globose berry to +/-7mm in diameter, blackish when mature, shiny or not. Seeds many.
Flowering - May - November.
Habitat - Waste ground, disturbed sites, open woods, pastures, roadsides, railroads.
Origin - Native to U.S.
Other info. - This is a very common toxic plant. It is in the same family as the tomato and potato. The plant is very variable in size and also in leaf shape but the description above is generally very good for the species. The petals of the corolla are typically white but can have shades of blue or purple.
The name S. americanum is debated and S. ptycanthum Dun. ex DC. may be a better name. S. nigrum var. virginicum L. is also used.
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文章
Dummer. ゛☀
2017年07月18日
Family - Liliaceae
Stems - To +50cm long, herbaceous, arching, simple, from a rhizome, simple, mostly glabrous but short hirsute at apex, slightly zig-zag in upper portions.
Leaves - Alternate, sessile, slightly sheathing at the base, entire but with strigillose-ciliolate margins, abruptly acuminate to acute, with 3-5 main veins, elliptic-oblong, glabrous above, short pubescent on veins below, to +/-11cm long, +/-4cm broad.
Inflorescence - Terminal panicle to +/-7cm long in flower. Axis mostly white, hirsutulous. Pedicels to 1.5mm long.
Flowers - Tepals 6, white, glabrous, spreading, to 1.5mm long. Stamens 6, erect to spreading, opposite the tepals. Filaments compressed, broadest at the base, white, glabrous, to 2mm long.Anthers pale yellow, bi-lobed, 1mm long. Ovary superior, ovoid, glabrous, white, 3-locular, -1.5mm long. Styles wanting. Placentation axile. Ovules 2 per locule. Fruit a reddish berry to 6mm in diameter.
Flowering - April - June.
Habitat - Rich woods.
Origin - Native to U.S.
Other info. - This is a common species throughout Missouri. The plant flourishes in the early season but tends to wilt and die off by the late summer months.
Traditionally the plant was eaten and also used as a remedy for many ailments from constipation to insanity.
Stems - To +50cm long, herbaceous, arching, simple, from a rhizome, simple, mostly glabrous but short hirsute at apex, slightly zig-zag in upper portions.
Leaves - Alternate, sessile, slightly sheathing at the base, entire but with strigillose-ciliolate margins, abruptly acuminate to acute, with 3-5 main veins, elliptic-oblong, glabrous above, short pubescent on veins below, to +/-11cm long, +/-4cm broad.
Inflorescence - Terminal panicle to +/-7cm long in flower. Axis mostly white, hirsutulous. Pedicels to 1.5mm long.
Flowers - Tepals 6, white, glabrous, spreading, to 1.5mm long. Stamens 6, erect to spreading, opposite the tepals. Filaments compressed, broadest at the base, white, glabrous, to 2mm long.Anthers pale yellow, bi-lobed, 1mm long. Ovary superior, ovoid, glabrous, white, 3-locular, -1.5mm long. Styles wanting. Placentation axile. Ovules 2 per locule. Fruit a reddish berry to 6mm in diameter.
Flowering - April - June.
Habitat - Rich woods.
Origin - Native to U.S.
Other info. - This is a common species throughout Missouri. The plant flourishes in the early season but tends to wilt and die off by the late summer months.
Traditionally the plant was eaten and also used as a remedy for many ailments from constipation to insanity.
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Dummer. ゛☀
2017年07月18日
Family - Apiaceae
Stems - Stout, glabrous (entire plant), herbaceous, hollow, ribbed and angled, to 2m tall, slightly zig-zag in form, erect but reclining with age, branching, from thickened roots, rooting at lower nodes, with a sweet fennel fragrance.
Leaves - Alternate, odd-pinnate, petiolate to sessile. Lowest leaves to +50cm long, reduced above. Petiole to +7cm long, sheathing, ribbed or angled, with an adaxial groove. Lateral leaflets sessile, opposite, linear to lanceolate or lance-ovate, to +/-15cm long, 6cm broad, serrulate to serrate, deep green adaxially, lighter shiny-green abaxially, glabrous, acute to acuminate at apex, larger leaflets typically rounded and oblique at the base. Terminal leaflet with a petiolule to +3cm long.
Inflorescence - Terminal and axillary compound umbels. Peduncles to +6cm long, ribbed and angled. Primary rays to 3.5 cm long, subtended by recurved bracts, glabrous. Bracts to -2cm long, 2-3mm broad, linear-lanceolate to lance-attenuate, with scarious margins, +/-12. Umbellets with raylets to 8mm long, subtended by similar but smaller bracts than main rays. Raylets to 8mm long, glabrous. Umbellets with 25-35 flowers.
Flowers - Petals 5, white, spreading, glabrous, obovate, with an inflexed apiculate apex, to 1.5mm long, 1.3mm broad. Stamens 5, alternating with petals, spreading. Filaments white, to 2mm long. Anthers whitish-pink to pink or yellow, .2mm broad. Styles 2, distinct, very short, -.2mm long, with greenish-white stylopodium. Stylopodium to 1.1mm broad. Ovary inferior, ribbed, -1mm long in flower, 1.1mm broad, compressed slightly. Fruit oval to orbicular, to 3mm long.
Flowering - July - September.
Habitat - Wet areas.
Origin - Native to U.S.
Other info. - This highly variable species can be found throughout Missouri in wet habitats. As seen in the pictures above, the plant is very variable and can be hard to ID in the field. The characteristics to look for are the bracts and bracteoles subtending the rays and raylets of the inflorescence and the serrulate to serrate margins of the leaflets.
Stems - Stout, glabrous (entire plant), herbaceous, hollow, ribbed and angled, to 2m tall, slightly zig-zag in form, erect but reclining with age, branching, from thickened roots, rooting at lower nodes, with a sweet fennel fragrance.
Leaves - Alternate, odd-pinnate, petiolate to sessile. Lowest leaves to +50cm long, reduced above. Petiole to +7cm long, sheathing, ribbed or angled, with an adaxial groove. Lateral leaflets sessile, opposite, linear to lanceolate or lance-ovate, to +/-15cm long, 6cm broad, serrulate to serrate, deep green adaxially, lighter shiny-green abaxially, glabrous, acute to acuminate at apex, larger leaflets typically rounded and oblique at the base. Terminal leaflet with a petiolule to +3cm long.
Inflorescence - Terminal and axillary compound umbels. Peduncles to +6cm long, ribbed and angled. Primary rays to 3.5 cm long, subtended by recurved bracts, glabrous. Bracts to -2cm long, 2-3mm broad, linear-lanceolate to lance-attenuate, with scarious margins, +/-12. Umbellets with raylets to 8mm long, subtended by similar but smaller bracts than main rays. Raylets to 8mm long, glabrous. Umbellets with 25-35 flowers.
Flowers - Petals 5, white, spreading, glabrous, obovate, with an inflexed apiculate apex, to 1.5mm long, 1.3mm broad. Stamens 5, alternating with petals, spreading. Filaments white, to 2mm long. Anthers whitish-pink to pink or yellow, .2mm broad. Styles 2, distinct, very short, -.2mm long, with greenish-white stylopodium. Stylopodium to 1.1mm broad. Ovary inferior, ribbed, -1mm long in flower, 1.1mm broad, compressed slightly. Fruit oval to orbicular, to 3mm long.
Flowering - July - September.
Habitat - Wet areas.
Origin - Native to U.S.
Other info. - This highly variable species can be found throughout Missouri in wet habitats. As seen in the pictures above, the plant is very variable and can be hard to ID in the field. The characteristics to look for are the bracts and bracteoles subtending the rays and raylets of the inflorescence and the serrulate to serrate margins of the leaflets.
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Dummer. ゛☀
2017年07月18日
Family - Brassicaceae
Stems - To -1m tall, erect, herbaceous, branching in he apical 1/3, hispid in the basal 1/4, glabrous and glaucous above, from a big taproot, purplish at the nodes or not, slightly angled from decurrent petiole tissue.
Leaves - Alternate, petiolate, odd-pinnatifid. Lowest leaves with the rachis sparse hispid, petioles purplish at the base, green and glabrous apically. Divisions of the lower leaves +/-9 per side, subulate-lanceolate, coarsely toothed or not, hispidulous, often involute, 1-1.5cm long, +/-5mm broad, thinner near the base of the leaf. Terminal divisions broader than the laterals, not folded. All divisions acute. Upper cauline leaves reduced towards the apex. Divisions of the upper leaves linear, involute, glabrous, many with smaller divisions at their bases, to +2.5cm long, +/-1mm broad, acute, entire. Rachis of upper leaves glabrous to sparse hispidulous.
Inflorescence - Terminal and lateral racemes to +/-15cm long, compact in flower, elongating quickly in fruit, axis glabrous. Pedicels 7-8mm long in flower, to 1cm long and thickened in fruit, glabrous.
Flowers - Petals 4, spreading in the apical 1/2, white to yellow, spatulate, rounded at the apex, glabrous, tapering to a clawed base, 1cm long, 2-3mm broad at the apex. Stamens 6 (4 larger, 2 smaller), erect, exserted. Filaments to 5mm long, glabrous, translucent-white. Anthers -2mm long, erect and then spreading at dehiscence. Ovary cylindric, green, glabrous, to 6mm long in flower, superior, erect. Style wanting. Stigma capitate, two-lobed, 1.1mm broad. Sepals 4, spreading to erect, linear, 5-6mm long, involute, 1.3mm broad, glabrous, rounded and scarious at the apex, green. Fruits ascending, glabrous, to +/-8cm long, 1.1mm broad, angled, falcate, with a capitate (old stigma) apex.
Flowering - April - August.
Habitat - Fields, pastures, roadsides, railroads, sand y and rocky open ground.
Origin - Native to Europe.
Other info. - This species can be found scattered throughout Missouri. The plant can be identified by the filiform divisions of its cauline leaves and its fairly big flowers (can be yellow or white). The basal and lowest leaves of the plant have broader divisions and are very typical for the genus Sisymbrium.
Stems - To -1m tall, erect, herbaceous, branching in he apical 1/3, hispid in the basal 1/4, glabrous and glaucous above, from a big taproot, purplish at the nodes or not, slightly angled from decurrent petiole tissue.
Leaves - Alternate, petiolate, odd-pinnatifid. Lowest leaves with the rachis sparse hispid, petioles purplish at the base, green and glabrous apically. Divisions of the lower leaves +/-9 per side, subulate-lanceolate, coarsely toothed or not, hispidulous, often involute, 1-1.5cm long, +/-5mm broad, thinner near the base of the leaf. Terminal divisions broader than the laterals, not folded. All divisions acute. Upper cauline leaves reduced towards the apex. Divisions of the upper leaves linear, involute, glabrous, many with smaller divisions at their bases, to +2.5cm long, +/-1mm broad, acute, entire. Rachis of upper leaves glabrous to sparse hispidulous.
Inflorescence - Terminal and lateral racemes to +/-15cm long, compact in flower, elongating quickly in fruit, axis glabrous. Pedicels 7-8mm long in flower, to 1cm long and thickened in fruit, glabrous.
Flowers - Petals 4, spreading in the apical 1/2, white to yellow, spatulate, rounded at the apex, glabrous, tapering to a clawed base, 1cm long, 2-3mm broad at the apex. Stamens 6 (4 larger, 2 smaller), erect, exserted. Filaments to 5mm long, glabrous, translucent-white. Anthers -2mm long, erect and then spreading at dehiscence. Ovary cylindric, green, glabrous, to 6mm long in flower, superior, erect. Style wanting. Stigma capitate, two-lobed, 1.1mm broad. Sepals 4, spreading to erect, linear, 5-6mm long, involute, 1.3mm broad, glabrous, rounded and scarious at the apex, green. Fruits ascending, glabrous, to +/-8cm long, 1.1mm broad, angled, falcate, with a capitate (old stigma) apex.
Flowering - April - August.
Habitat - Fields, pastures, roadsides, railroads, sand y and rocky open ground.
Origin - Native to Europe.
Other info. - This species can be found scattered throughout Missouri. The plant can be identified by the filiform divisions of its cauline leaves and its fairly big flowers (can be yellow or white). The basal and lowest leaves of the plant have broader divisions and are very typical for the genus Sisymbrium.
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Dummer. ゛☀
2017年07月18日
Family - Brassicaceae
Stems - To +20cm tall, erect, herbaceous, from a taproot, pubescent below, less so to glabrous above, often reddish in strong sun, typically branching near the base.
Leaves - Alternate, pinnately divided (pinnatifid) with 5-14 divisions on each side of the axis, to +4cm long, +1cm broad. Petioles and rachis pubescent. Divisions of the leaves acute, reduced basally, typically entire or with a small basal lobe, subulate to lanceolate glabrous or with one or two hairs near the apex. Leaves overwintering as a basal rosette.
Inflorescence - Terminal and axillary racemes, compact in flower, quickly expanding in fruit to more than 2/3 of the total plant height. Pedicels short (1-3mm) in flower, elongating to +4mm in fruit, glabrous.
Flowers - Petals 4, white, distinct, to 3mm long, 1mm broad, rounded at the apex, glabrous. Stamens 6, erect. Filaments to -2mm long, glabrous, translucent-white. Anthers yellow, .2mm long. Ovary cylindric, green to purple, glabrous, 1-2mm long in flower, quickly expanding. Style wanting. Sepals 4, distinct, whitish-green to purplish in strong sun, erect, glabrous, to 2mm long, 1mm broad, oblong-lanceolate, subacute to blunt at the apex. Fruits to +2cm long, 2mm broad, glabrous, moderately compressed ascending, with a -1mm long beak, 2-valved, divided by a septum, with +/-15 seeds per valve.
Flowering - March - May.
Habitat - Disturbed sites, waste ground, fallow fields, cultivated fields, roadsides, railroads.
Origin - Native to U.S.
Other info. - This little weedy species can be found mainly in the southern 2/3 of Missouri. The plant can be identified by its pinnately divided leaves, pubescent stems, small white flowers, and slightly compressed fruits.
Stems - To +20cm tall, erect, herbaceous, from a taproot, pubescent below, less so to glabrous above, often reddish in strong sun, typically branching near the base.
Leaves - Alternate, pinnately divided (pinnatifid) with 5-14 divisions on each side of the axis, to +4cm long, +1cm broad. Petioles and rachis pubescent. Divisions of the leaves acute, reduced basally, typically entire or with a small basal lobe, subulate to lanceolate glabrous or with one or two hairs near the apex. Leaves overwintering as a basal rosette.
Inflorescence - Terminal and axillary racemes, compact in flower, quickly expanding in fruit to more than 2/3 of the total plant height. Pedicels short (1-3mm) in flower, elongating to +4mm in fruit, glabrous.
Flowers - Petals 4, white, distinct, to 3mm long, 1mm broad, rounded at the apex, glabrous. Stamens 6, erect. Filaments to -2mm long, glabrous, translucent-white. Anthers yellow, .2mm long. Ovary cylindric, green to purple, glabrous, 1-2mm long in flower, quickly expanding. Style wanting. Sepals 4, distinct, whitish-green to purplish in strong sun, erect, glabrous, to 2mm long, 1mm broad, oblong-lanceolate, subacute to blunt at the apex. Fruits to +2cm long, 2mm broad, glabrous, moderately compressed ascending, with a -1mm long beak, 2-valved, divided by a septum, with +/-15 seeds per valve.
Flowering - March - May.
Habitat - Disturbed sites, waste ground, fallow fields, cultivated fields, roadsides, railroads.
Origin - Native to U.S.
Other info. - This little weedy species can be found mainly in the southern 2/3 of Missouri. The plant can be identified by its pinnately divided leaves, pubescent stems, small white flowers, and slightly compressed fruits.
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Dummer. ゛☀
2017年07月18日
Family - Saxifragaceae
Stems - From a bulbous fleshy whitish cormlike base with fibrous roots, clumping. Scape to +/-7cm tall, sparse to densely pilose,(some of the hairs with reddish glandular apices), herbaceous, erect.
Leaves - Basal, petiolate, +/-2cm long, +/-1.2cm broad, firm and crisp, often with reddish margins, glabrous and entire but with strigillose margins, ovate, rounded at apex, with slightly undulate margins. Petiole short, flattened, +/-5mm long.
Inflorescence - Terminal compact capitate cluster of cymules.(Say that five times fast). Each cymule subtended by a thin linear bract. Bracts often reddish near apex. Branches of inflorescence pilose.
Flowers - Petals 5, white, distinct, glabrous, subrotund, to 3mm in diameter. Stamens 10, arising from base of petals and sepals. Filaments to 1.5mm long, glabrous, greenish-white. Anthers orange, 1mm long. Ovary inferior. 3-carpellate. Placentation axile. Ovules many. Styles 3, green, 1.3mm long. Calyx tube turbinate, 2mm long, 5-lobed, glabrous. Lobes +/-3mm long, 2mm broad, glabrous, rounded to subacute at apex, often with a minute reddish tip.
Flowering - April - May.
Habitat - Sandstone glades and rocky prairies.
Origin - Native to U.S.
Other info. - Although the woodland plants are typically the harbingers of spring, this little glade plant blooms with or before all of them. The small clusters of white flowers stand out on their rocky substrata and typically the plant occurs in large colonies. This plant can be distinguished from the related S. virginiesis Michx. in that it stays small and compact even after flowering. The latter plant gets quite a bit taller and also occurs in more western counties of the state. S. texana occurs in the southeastern corner of Missouri.
Stems - From a bulbous fleshy whitish cormlike base with fibrous roots, clumping. Scape to +/-7cm tall, sparse to densely pilose,(some of the hairs with reddish glandular apices), herbaceous, erect.
Leaves - Basal, petiolate, +/-2cm long, +/-1.2cm broad, firm and crisp, often with reddish margins, glabrous and entire but with strigillose margins, ovate, rounded at apex, with slightly undulate margins. Petiole short, flattened, +/-5mm long.
Inflorescence - Terminal compact capitate cluster of cymules.(Say that five times fast). Each cymule subtended by a thin linear bract. Bracts often reddish near apex. Branches of inflorescence pilose.
Flowers - Petals 5, white, distinct, glabrous, subrotund, to 3mm in diameter. Stamens 10, arising from base of petals and sepals. Filaments to 1.5mm long, glabrous, greenish-white. Anthers orange, 1mm long. Ovary inferior. 3-carpellate. Placentation axile. Ovules many. Styles 3, green, 1.3mm long. Calyx tube turbinate, 2mm long, 5-lobed, glabrous. Lobes +/-3mm long, 2mm broad, glabrous, rounded to subacute at apex, often with a minute reddish tip.
Flowering - April - May.
Habitat - Sandstone glades and rocky prairies.
Origin - Native to U.S.
Other info. - Although the woodland plants are typically the harbingers of spring, this little glade plant blooms with or before all of them. The small clusters of white flowers stand out on their rocky substrata and typically the plant occurs in large colonies. This plant can be distinguished from the related S. virginiesis Michx. in that it stays small and compact even after flowering. The latter plant gets quite a bit taller and also occurs in more western counties of the state. S. texana occurs in the southeastern corner of Missouri.
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Dummer. ゛☀
2017年07月18日
Family - Saxifragaceae
Stems - Leaves and aerial stems arising from a caudex. Roots fleshy and translucent.
Leaves - Leaves in a basal rosette, spatulate, pilose above and below, less so above, tapered at the base to a reddish-purple short petiole, crenate to crenulate, rounded to acute at the apex, to +25cm long, +8cm broad.
Inflorescence - Panicle of clustered cymules terminating the flowering scape. Each branch of the panicle subtended by a linear-oblong bract. Bracts reduced upward, glandular pilose abaxially, glabrous adaxially, entire. Peduncles of cymules densely glandular hirsute, the glands reddish (use a lens to see). Each division of the cymules and each flower subtended by a small bract. Pedicels of the flowers +/-2mm long in flower. glandular-hirsute as the peduncles.
Flowers - Petals 5, white to greenish, distinct, lanceolate, glabrous, acute, 5mm long, to 1.5mm broad. Stamens 10, arising at the base of the petals and sepals, distinct, spreading to erect. Filaments translucent-white, to 1.5mm long, glabrous. Anthers orange when fresh, .4-.5mm long. Styles 2, expanded greatly at the base, divided all the way to the base, recurving at the apices, to 2mm long, glabrous, green. Stigmas small, translucent. Ovary swollen, green, glabrous, partially inferior, 2-carpeled. Placentation axile. Hypanthium pale green, obconic, 2-2.5mm long, glabrous. Sepals 5, green, glabrous, spreading, to 3mm long, 1.5mm broad, subulate, with reddish apices.
Flowering - April - June.
Habitat - Moist, north-facing sandstone bluffs. Typically on St. Peter sandstone but sometimes found on other types of sandstone.
Origin - Native to U.S.
Other info. - This species can be found in the east-central portion of Missouri and is fairly exclusive to the habitat mentioned above. The plants grow directly from the sides of cracks in the sandstone or in the thin layer of litter settled upon the rock. The basal leaves of the plant emerge very early in the spring and flowering occurs about a month later.
This is an easy species to identify becasue of its habitat, pilose stems, and big basal leaves.
Stems - Leaves and aerial stems arising from a caudex. Roots fleshy and translucent.
Leaves - Leaves in a basal rosette, spatulate, pilose above and below, less so above, tapered at the base to a reddish-purple short petiole, crenate to crenulate, rounded to acute at the apex, to +25cm long, +8cm broad.
Inflorescence - Panicle of clustered cymules terminating the flowering scape. Each branch of the panicle subtended by a linear-oblong bract. Bracts reduced upward, glandular pilose abaxially, glabrous adaxially, entire. Peduncles of cymules densely glandular hirsute, the glands reddish (use a lens to see). Each division of the cymules and each flower subtended by a small bract. Pedicels of the flowers +/-2mm long in flower. glandular-hirsute as the peduncles.
Flowers - Petals 5, white to greenish, distinct, lanceolate, glabrous, acute, 5mm long, to 1.5mm broad. Stamens 10, arising at the base of the petals and sepals, distinct, spreading to erect. Filaments translucent-white, to 1.5mm long, glabrous. Anthers orange when fresh, .4-.5mm long. Styles 2, expanded greatly at the base, divided all the way to the base, recurving at the apices, to 2mm long, glabrous, green. Stigmas small, translucent. Ovary swollen, green, glabrous, partially inferior, 2-carpeled. Placentation axile. Hypanthium pale green, obconic, 2-2.5mm long, glabrous. Sepals 5, green, glabrous, spreading, to 3mm long, 1.5mm broad, subulate, with reddish apices.
Flowering - April - June.
Habitat - Moist, north-facing sandstone bluffs. Typically on St. Peter sandstone but sometimes found on other types of sandstone.
Origin - Native to U.S.
Other info. - This species can be found in the east-central portion of Missouri and is fairly exclusive to the habitat mentioned above. The plants grow directly from the sides of cracks in the sandstone or in the thin layer of litter settled upon the rock. The basal leaves of the plant emerge very early in the spring and flowering occurs about a month later.
This is an easy species to identify becasue of its habitat, pilose stems, and big basal leaves.
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Dummer. ゛☀
2017年07月18日
Family - Papaveraceae
Stems - Thick subterranean rhizome, branching, with blood red sap. Roots fibrous to slightly thickened.
Leaves - Leaves produced from each end of the rhizome. At anthesis the leaves are typically shorter than the pedicel of the flower. Petiole elongating to +/-17cm long, glabrous. Blades lobed or not, glaucous abaxially, dull green adaxially, glabrous, +12cm broad, 10cm long.
Inflorescence - Single flower produced just before or with the new seasons leaf. Peduncle to +11cm long in flower, glabrous, expanding in fruit to +15cm long, typically exserted from between the cordate base of the leaf.
Flowers - Petals typically 8 (4 being slightly larger then the others), white, oblanceolate to narrowly elliptic, glabrous, entire, to 3cm long, -1cm broad. Stamens many. Filaments 5-10mm long. Anthers yellow, 2-2.5mm long. Style very short (1mm long). Stigma 2-lobed. Capsules to +3cm long, 1cm in diameter, glabrous, beaked, unilocular. Placentation parietal. Seeds keeled, 10-15 per capsule.
Flowering - March - April.
Habitat - Base of bluffs, ravines, rich or rocky woods, bottoms, limestone outcrops.
Origin - Native to U.S.
Other info. - This is one the most popular and easily recognizable wildflowers in North America. It can be found throughout Missouri. The plant is most often seen in fruit rather than in flower because the striking flowers are very short lived. The fruits develop quickly after the flowers have wilted.
The rhizome of this species bleeds a red sap when injured, hence the common name of the plant, "Bloodroot." Licking the root causes an instant burning sensation on the tounge and lips. Some people have experienced tunnel vision from licking the root a bit too much.
This species was used widely by natives to treat a variety of ailments. Juice from the rhizome was used as an appetite stimulant and a sedative. A tea from the root was used to treat rheumatism, asthma, fevers, and other bronchial ailments. Many other modern remedies have been made from the plant also, this has led to its decline in areas where plant hunters seek to collect wild plants for profit. Please do not pick this species from the wild. It will grow from seed.
The species contains the alkaloid sanguinarine which has shown antiseptic, anticancer, and anesthetic properties. It is used in mouthwash and toothpaste as an plaque inhibitor.
Stems - Thick subterranean rhizome, branching, with blood red sap. Roots fibrous to slightly thickened.
Leaves - Leaves produced from each end of the rhizome. At anthesis the leaves are typically shorter than the pedicel of the flower. Petiole elongating to +/-17cm long, glabrous. Blades lobed or not, glaucous abaxially, dull green adaxially, glabrous, +12cm broad, 10cm long.
Inflorescence - Single flower produced just before or with the new seasons leaf. Peduncle to +11cm long in flower, glabrous, expanding in fruit to +15cm long, typically exserted from between the cordate base of the leaf.
Flowers - Petals typically 8 (4 being slightly larger then the others), white, oblanceolate to narrowly elliptic, glabrous, entire, to 3cm long, -1cm broad. Stamens many. Filaments 5-10mm long. Anthers yellow, 2-2.5mm long. Style very short (1mm long). Stigma 2-lobed. Capsules to +3cm long, 1cm in diameter, glabrous, beaked, unilocular. Placentation parietal. Seeds keeled, 10-15 per capsule.
Flowering - March - April.
Habitat - Base of bluffs, ravines, rich or rocky woods, bottoms, limestone outcrops.
Origin - Native to U.S.
Other info. - This is one the most popular and easily recognizable wildflowers in North America. It can be found throughout Missouri. The plant is most often seen in fruit rather than in flower because the striking flowers are very short lived. The fruits develop quickly after the flowers have wilted.
The rhizome of this species bleeds a red sap when injured, hence the common name of the plant, "Bloodroot." Licking the root causes an instant burning sensation on the tounge and lips. Some people have experienced tunnel vision from licking the root a bit too much.
This species was used widely by natives to treat a variety of ailments. Juice from the rhizome was used as an appetite stimulant and a sedative. A tea from the root was used to treat rheumatism, asthma, fevers, and other bronchial ailments. Many other modern remedies have been made from the plant also, this has led to its decline in areas where plant hunters seek to collect wild plants for profit. Please do not pick this species from the wild. It will grow from seed.
The species contains the alkaloid sanguinarine which has shown antiseptic, anticancer, and anesthetic properties. It is used in mouthwash and toothpaste as an plaque inhibitor.
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Dummer. ゛☀
2017年07月18日
Family - Primulaceae
Stems - Multiple from base, erect, branching, glabrous, terete, from fibrous roots, light green, herbaceous, to 30cm tall.
Leaves - Alternate. Lowest leaves tapered at base to a petiole. Petioles to 1.5cm long. Blades spatulate, entire, light green, subacute at apex, glabrous. Entire leaf to +/-7cm long, -4cm broad. Upper cauline leaves slightly more narrow and nearly sessile.
Inflorescence - Axillary racemes to +/-7cm long. Pedicels typically jointed, with a small subulate bract at joint, to +1.2cm long in fruit, shorter in flower, spreading. Axis and pedicels glabrous.
Flowers - Corolla white, 5-lobed, +/-3mm broad, glabrous. Corolla tube .5mm long. Lobes truncate to emarginate at apex. Staminodia alternating with corolla lobes, white, .4mm long, 1-5 in number. Stamens 5, opposite corolla lobes, adnate near base of corolla tube. Filaments white, .2-.3mm long, glabrous. Anthers yellow, .2mm broad. Style short, .1mm long, glabrous. Ovary partially inferior, unilocular. Placentation free-central. Ovules many. Calyx tube green, glabrous, .7mm long, 5-lobed. Lobes triangular, glabrous, 1mm long. Calyx accrescent, forming a toothed capsule to 3mm in diameter in fruit.
Flowering - April - June.
Habitat - Streambanks, seeps, low wet woods, lake and pond margins.
Origin - Native to U.S.
Other info. - This little species can be found mostly in the lower 1/2 of Missouri. The flowers are minute, (parviflorus), and the plant is fairly indistinct. The plants habitat and its large, open racemes are good characteristics to use for identification. Grazing wildlife sometimes feed on the plant.
Stems - Multiple from base, erect, branching, glabrous, terete, from fibrous roots, light green, herbaceous, to 30cm tall.
Leaves - Alternate. Lowest leaves tapered at base to a petiole. Petioles to 1.5cm long. Blades spatulate, entire, light green, subacute at apex, glabrous. Entire leaf to +/-7cm long, -4cm broad. Upper cauline leaves slightly more narrow and nearly sessile.
Inflorescence - Axillary racemes to +/-7cm long. Pedicels typically jointed, with a small subulate bract at joint, to +1.2cm long in fruit, shorter in flower, spreading. Axis and pedicels glabrous.
Flowers - Corolla white, 5-lobed, +/-3mm broad, glabrous. Corolla tube .5mm long. Lobes truncate to emarginate at apex. Staminodia alternating with corolla lobes, white, .4mm long, 1-5 in number. Stamens 5, opposite corolla lobes, adnate near base of corolla tube. Filaments white, .2-.3mm long, glabrous. Anthers yellow, .2mm broad. Style short, .1mm long, glabrous. Ovary partially inferior, unilocular. Placentation free-central. Ovules many. Calyx tube green, glabrous, .7mm long, 5-lobed. Lobes triangular, glabrous, 1mm long. Calyx accrescent, forming a toothed capsule to 3mm in diameter in fruit.
Flowering - April - June.
Habitat - Streambanks, seeps, low wet woods, lake and pond margins.
Origin - Native to U.S.
Other info. - This little species can be found mostly in the lower 1/2 of Missouri. The flowers are minute, (parviflorus), and the plant is fairly indistinct. The plants habitat and its large, open racemes are good characteristics to use for identification. Grazing wildlife sometimes feed on the plant.
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Dummer. ゛☀
2017年07月17日
Family - Rosaceae
Stems - Trailing, with few hooked or straight prickles to +/-1.5mm long, otherwise glabrous, thin, terete.
Leaves - Appearing to rise from the sides of the stem, alternate, trifoliolate, petiolate, stipulate. Petioles to +/-3cm long, with few retrorse prickles, lanate, with single longitudinal dorsal groove. Stipules +/-1cm long, +/-5mm broad, entire or with a few coarse teeth, glabrous or sparse pubescent above, lanate below, margins ciliate. Leaflets 3. Lateral leaflets coarsely serrate, oblique at base, sessile, with sparse pubescence above, pubescent below. Terminal leaflet with stalk to 6mm long, broadest at or above the middle, base cuneate, sparse pubescent above, pubescent below, obovate to oblanceolate, coarse serrate.
Inflorescence - Terminal, few-flowered loose cymes. Pedicels to +/-4cm long, lanate.
Flowers - Petals 5, white, glabrous, distinct, spreading, to +/-2cm long, +/-1cm broad, obtuse at apex. Stamens many(+75). Filaments to +6mm long, white, glabrous. Carpels many. Hypanthium short, 1-1.5mm long, densely lanate. Sepals 5, narrowly ovate, green with whitish margins, densely lanate internally, lanate externally, subequal, to +6mm long, 3.5mm broad, apiculate, spreading to reflexed.
Flowering - April - June.
Habitat - Rocky open woods, rocky slopes, thickets, fields, roadsides, railroads.
Origin - Native to U.S.
Other info. - This is just one of the 16 or so blackberries found in this state. All produce the familiar black aggregate fruit we love to eat. Most plants in the genus are difficult to tell apart but these trailing species are a bit easier.
Steyermark gives two varieties for the species, one with three forms, but I won't go into these here.
Stems - Trailing, with few hooked or straight prickles to +/-1.5mm long, otherwise glabrous, thin, terete.
Leaves - Appearing to rise from the sides of the stem, alternate, trifoliolate, petiolate, stipulate. Petioles to +/-3cm long, with few retrorse prickles, lanate, with single longitudinal dorsal groove. Stipules +/-1cm long, +/-5mm broad, entire or with a few coarse teeth, glabrous or sparse pubescent above, lanate below, margins ciliate. Leaflets 3. Lateral leaflets coarsely serrate, oblique at base, sessile, with sparse pubescence above, pubescent below. Terminal leaflet with stalk to 6mm long, broadest at or above the middle, base cuneate, sparse pubescent above, pubescent below, obovate to oblanceolate, coarse serrate.
Inflorescence - Terminal, few-flowered loose cymes. Pedicels to +/-4cm long, lanate.
Flowers - Petals 5, white, glabrous, distinct, spreading, to +/-2cm long, +/-1cm broad, obtuse at apex. Stamens many(+75). Filaments to +6mm long, white, glabrous. Carpels many. Hypanthium short, 1-1.5mm long, densely lanate. Sepals 5, narrowly ovate, green with whitish margins, densely lanate internally, lanate externally, subequal, to +6mm long, 3.5mm broad, apiculate, spreading to reflexed.
Flowering - April - June.
Habitat - Rocky open woods, rocky slopes, thickets, fields, roadsides, railroads.
Origin - Native to U.S.
Other info. - This is just one of the 16 or so blackberries found in this state. All produce the familiar black aggregate fruit we love to eat. Most plants in the genus are difficult to tell apart but these trailing species are a bit easier.
Steyermark gives two varieties for the species, one with three forms, but I won't go into these here.
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Dummer. ゛☀
2017年07月17日
Family - Rosaceae
Stems - Erect or arching, to +2.5m long (tall). Primocanes deep green with a reddish-brownish tinge, with straight prickles to 1cm long, appressed pubescent or glabrous. Floricanes reddish-green with similar prickles to primocanes or with prickles more hooked, appressed pubescent or glabrous. All stems with vertical grooves creating an almost angled appearance.
Leaves - Alternate, typically trifoliolate on floricanes, with 5 leaflets on primocanes. Leaflets serrate, ovate to oval, tapering at both ends or cordate at base, upper surface pubescent, lower surface pubescent mostly on midrib and viens but also on leaf tissue. Middle leaflet larger than lateral leaflets. Petiole with hooked prickles. Stipules at base of petioles linear, +/- 1cm long.
Inflorescence - Racemose, to 15cm long (tall), cylindrical in outline, typically with 9-14 flowers. Racemes exerted beyond the leaves not hidden amongst them.
Flowers - White, to +2.5cm broad with 5 distinct petals and many stamens. Pedicels hairy with some gland-tipped pubescence, with a small bract at the base.
Fruit - An aggregate fruit, shiny dark purple to black color, to +2cm long.
Flowering - April - June.
Habitat - Shaded woods, rich soils, thickets.
Origin - Native to U.S.
Other info. - Species of this genus are sometimes very difficult to identify. The very similar R. orarius Blanch. has leaflets which are glabrous below and more ovate to roundish. The racemes of R. orarius are also more ovate in shape instead of cylindrical. Both species provide a delicious "blackberry" we love to eat.
Stems - Erect or arching, to +2.5m long (tall). Primocanes deep green with a reddish-brownish tinge, with straight prickles to 1cm long, appressed pubescent or glabrous. Floricanes reddish-green with similar prickles to primocanes or with prickles more hooked, appressed pubescent or glabrous. All stems with vertical grooves creating an almost angled appearance.
Leaves - Alternate, typically trifoliolate on floricanes, with 5 leaflets on primocanes. Leaflets serrate, ovate to oval, tapering at both ends or cordate at base, upper surface pubescent, lower surface pubescent mostly on midrib and viens but also on leaf tissue. Middle leaflet larger than lateral leaflets. Petiole with hooked prickles. Stipules at base of petioles linear, +/- 1cm long.
Inflorescence - Racemose, to 15cm long (tall), cylindrical in outline, typically with 9-14 flowers. Racemes exerted beyond the leaves not hidden amongst them.
Flowers - White, to +2.5cm broad with 5 distinct petals and many stamens. Pedicels hairy with some gland-tipped pubescence, with a small bract at the base.
Fruit - An aggregate fruit, shiny dark purple to black color, to +2cm long.
Flowering - April - June.
Habitat - Shaded woods, rich soils, thickets.
Origin - Native to U.S.
Other info. - Species of this genus are sometimes very difficult to identify. The very similar R. orarius Blanch. has leaflets which are glabrous below and more ovate to roundish. The racemes of R. orarius are also more ovate in shape instead of cylindrical. Both species provide a delicious "blackberry" we love to eat.
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Dummer. ゛☀
2017年07月17日
Family - Fabaceae
Stems - Woody, single. A tree to +15m tall. Bark tan to light grayish. Paired spines present on younger branches. New seasons growth angled, sparsely pubescent.
Leaves - Alternate, odd-pinnate, typically with 7-19 leaflets. Leaflets oval to elliptic, opposite, glabrous when mature, entire, to +2cm long, +1.5cm broad.
Inflorescence - Drooping Axillary racemes to +15cm long. Typically 20-30 flowers per raceme. Peduncle and pedicles pubescent.
Flowers - Corolla papilionaceous, 2cm long and tall. Standard to 1.8cm broad and long, with yellowish spot in center. Stamens diadelphous, tube to 1.4cm long. Anthers orange, -1mm long. Ovary green, flattened, 1.5cm long, 1.1mm broad. Style 6.5mm long, pubescent at apex, upcurving near apex. Calyx tubular, bilabiate, sparsely to moderately pubescent, green mottled with red. Upper lip 3-4mm long, notched at apex. Lower lip 3-lobed. Lobes 2.5mm long. Fruits compressed, +1cm wide, +/- 7cm long.
Flowering - May - June.
Habitat - Slopes, pastures, open woods, streambanks, roadsides.
Origin - Native to U.S.
Other info. - This tree is very common and is easily noticed when flowering. The flowers have a pleasant fragrance but each cluster only last a few days. My dad, who is the master of all things green and growing, recognized it from his days in Europe, where the tree also grows.
Stems - Woody, single. A tree to +15m tall. Bark tan to light grayish. Paired spines present on younger branches. New seasons growth angled, sparsely pubescent.
Leaves - Alternate, odd-pinnate, typically with 7-19 leaflets. Leaflets oval to elliptic, opposite, glabrous when mature, entire, to +2cm long, +1.5cm broad.
Inflorescence - Drooping Axillary racemes to +15cm long. Typically 20-30 flowers per raceme. Peduncle and pedicles pubescent.
Flowers - Corolla papilionaceous, 2cm long and tall. Standard to 1.8cm broad and long, with yellowish spot in center. Stamens diadelphous, tube to 1.4cm long. Anthers orange, -1mm long. Ovary green, flattened, 1.5cm long, 1.1mm broad. Style 6.5mm long, pubescent at apex, upcurving near apex. Calyx tubular, bilabiate, sparsely to moderately pubescent, green mottled with red. Upper lip 3-4mm long, notched at apex. Lower lip 3-lobed. Lobes 2.5mm long. Fruits compressed, +1cm wide, +/- 7cm long.
Flowering - May - June.
Habitat - Slopes, pastures, open woods, streambanks, roadsides.
Origin - Native to U.S.
Other info. - This tree is very common and is easily noticed when flowering. The flowers have a pleasant fragrance but each cluster only last a few days. My dad, who is the master of all things green and growing, recognized it from his days in Europe, where the tree also grows.
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Dummer. ゛☀
2017年07月17日
Family - Rosaceae
Stems - To +2m tall, multiple from base, woody, branching. New seasons growth lanate-tomentose, green, becoming purplish-brown with maturity.
Leaves - Alternate, petiolate, stipulate. Stipules at base of new leaves, 3mm long, linear. Petiole to 5mm long, lanate-tomentose. Blade obovate to elliptic, serrulate, acute to acuminate, deep green above, paler below, to +7cm long, +4cm broad, glabrous above but with dark red glands on midrib, lanate to pubescent below.
Inflorescence - Termnal cymose panicle on new seasons growth, to 5cm broad, +5cm long, appearing with the new seasons leaves. Pedicels densely lanate, +/-1cm long.
Flowers - Corolla rotate, 1.5cm broad. Petals 5, white, clawed, glabrous. Claw to 1.2mm long. Limb orbicular, 5mm in diameter. Stamens +/-20. Filaments white, glabrous, 4mm long, anthers pinkish to rose, .9mm long and broad. Style 5-parted, reddish-brown at apex, whitish below, 4mm long. Ovary inferior, 5-locular. Receptacle lanate. Hypanthium -2mm long(tall), 3.5mm broad, campanulate, lanate. Sepals 5, 2mm long, 2mm broad at base, triangular. Fruits deep brownish-red to black, globose, 5-8mm in diameter, many seeded.
Flowering - April - July.
Habitat - Low woods, moist to wet ground, also cultivated.
Origin - Native to U.S.
Other info. - This species is widely cultivated throughout Missouri but is found wild in only one southeastern county. It is an easy species to identify because of its showy flower clusters and blackish fruits. The fruits aren't really eaten much by wild animals, hence you will find them on the tree after the leaves have fallen and well into winter.
Stems - To +2m tall, multiple from base, woody, branching. New seasons growth lanate-tomentose, green, becoming purplish-brown with maturity.
Leaves - Alternate, petiolate, stipulate. Stipules at base of new leaves, 3mm long, linear. Petiole to 5mm long, lanate-tomentose. Blade obovate to elliptic, serrulate, acute to acuminate, deep green above, paler below, to +7cm long, +4cm broad, glabrous above but with dark red glands on midrib, lanate to pubescent below.
Inflorescence - Termnal cymose panicle on new seasons growth, to 5cm broad, +5cm long, appearing with the new seasons leaves. Pedicels densely lanate, +/-1cm long.
Flowers - Corolla rotate, 1.5cm broad. Petals 5, white, clawed, glabrous. Claw to 1.2mm long. Limb orbicular, 5mm in diameter. Stamens +/-20. Filaments white, glabrous, 4mm long, anthers pinkish to rose, .9mm long and broad. Style 5-parted, reddish-brown at apex, whitish below, 4mm long. Ovary inferior, 5-locular. Receptacle lanate. Hypanthium -2mm long(tall), 3.5mm broad, campanulate, lanate. Sepals 5, 2mm long, 2mm broad at base, triangular. Fruits deep brownish-red to black, globose, 5-8mm in diameter, many seeded.
Flowering - April - July.
Habitat - Low woods, moist to wet ground, also cultivated.
Origin - Native to U.S.
Other info. - This species is widely cultivated throughout Missouri but is found wild in only one southeastern county. It is an easy species to identify because of its showy flower clusters and blackish fruits. The fruits aren't really eaten much by wild animals, hence you will find them on the tree after the leaves have fallen and well into winter.
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Dummer. ゛☀
2017年07月17日
Family - Rosaceae
Stems - To +/-15m tall, woody, typically with a single trunk, branching, pyramid in form.
Leaves - Alternate, petiolate, glabrous. Petiole to +/-5cm long. Blade broadly ovate, truncate to slightly tapering at base, crenate-serrate, acuminate to acute, undulate, glabrous, to +/-7cm long, +/-5cm broad, shiny green above, light blue-green below.
Inflorescence - Flowers typically appearing before leaves on new seasons growth. Flowers in dense terminal domed to globose cymes to +/-7cm broad, +/-7cm long. Pedicels lanate to arachnoid pubescent, +/-2cm long.
Flowers - Corolla rotate, to 2.8cm broad. Petals 5, white, glabrous, orbicular, distinct, borne at edge of receptacle, +/-1cm in diameter. Stamens typically 20, exserted. Filamnets white, glabrous, to 7mm long. Anthers reddish-purple, 1.2mm long. Styles 2. Carpels 2, with 2 ovules each. Ovary inferior. Hypanthium 3-4mm tall(long), lanate to arachnoid pubescent. Sepals 5, acuminate to triangular, lanate to arachnoid pubescent, 3mm long.
Flowering - March - April.
Habitat - Cultivated.
Origin - Native to China (Asia).
Other info. - P. calleryana is typically the first tree to bloom in the spring. The brilliant white flowers dominate the dull winter landscape of Missouri for a month or so. This species was introduced into cultivation in 1919. The "Bradford" cultivar came into cultivation in the 50's if memory serves me right. Other cultivars exsist which have different color fall foliage and different growing characteristics. Fruits can be absent to many small reddish pomes about 1cm in diameter.
Stems - To +/-15m tall, woody, typically with a single trunk, branching, pyramid in form.
Leaves - Alternate, petiolate, glabrous. Petiole to +/-5cm long. Blade broadly ovate, truncate to slightly tapering at base, crenate-serrate, acuminate to acute, undulate, glabrous, to +/-7cm long, +/-5cm broad, shiny green above, light blue-green below.
Inflorescence - Flowers typically appearing before leaves on new seasons growth. Flowers in dense terminal domed to globose cymes to +/-7cm broad, +/-7cm long. Pedicels lanate to arachnoid pubescent, +/-2cm long.
Flowers - Corolla rotate, to 2.8cm broad. Petals 5, white, glabrous, orbicular, distinct, borne at edge of receptacle, +/-1cm in diameter. Stamens typically 20, exserted. Filamnets white, glabrous, to 7mm long. Anthers reddish-purple, 1.2mm long. Styles 2. Carpels 2, with 2 ovules each. Ovary inferior. Hypanthium 3-4mm tall(long), lanate to arachnoid pubescent. Sepals 5, acuminate to triangular, lanate to arachnoid pubescent, 3mm long.
Flowering - March - April.
Habitat - Cultivated.
Origin - Native to China (Asia).
Other info. - P. calleryana is typically the first tree to bloom in the spring. The brilliant white flowers dominate the dull winter landscape of Missouri for a month or so. This species was introduced into cultivation in 1919. The "Bradford" cultivar came into cultivation in the 50's if memory serves me right. Other cultivars exsist which have different color fall foliage and different growing characteristics. Fruits can be absent to many small reddish pomes about 1cm in diameter.
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Dummer. ゛☀
2017年07月17日
Family - Apiaceae
Stems - To 60cm tall, from weak roots, erect, herbaceous, glabrous, rounded to slightly 4-angled, simple or with few branches.
Leaves - Alternate, petiolate, pinnately divided, glabrous, to 5cm long. Petioles to 4-5mm long, sheathing and flattened. Leaflets opposite, lowest pair often divided again (bifurcate), all leaflets filiform.
Inflorescence - Terminal compound umbels. Primary rays of umbels typically 8-11, to 9mm long in flower, longer in fruit, glabrous, subtended by 3-15 unequal threadlike bracts (to +1cm long), glabrous. Umbellets of typically 5-11 flowers. Raylets to 3mm long in flower, longer in fruit, glabrous, subtended by few short threadlike bracts.
Flowers - Petals 5, white, equal, to +/-1.3mm long, 1mm broad, glabrous, apiculate to caudate and incurved at apex. Stamens 5, alternating with petals. Filaments white, .8mm long, glabrous. Anthers pinkish-rose, +/-.3mm long. Styles 2, short, with broad expanded stylopodium. Ovary inferior, 2-locular, with one ovule per locule. Sepals 5, alternating with petals, whitish, triangular-attenuate, .3mm long. Fruits 2.4mm broad, glabrous, ovoid to orbicular, with persistent sepals and styles.
Flowering - June - August.
Habitat - Moist to wet prairies, swampy meadows, wet depressions of glades, wet ground along railroads.
Origin - Native to U.S.
Other info. - This species is small but easy to ID in the field because of its very fine leaves, weak stems, and large umbels of flowers. It grows in moist locations which is another major factor used in identification. The plant can be found in large numbers in some areas, such as prairies.
Photographs taken at the Dorris Creek Prairie Conservation Area, Barton County, MO., 7-28-00, and at Bethel Prairie, Barton County, MO., 7-4-03.
Stems - To 60cm tall, from weak roots, erect, herbaceous, glabrous, rounded to slightly 4-angled, simple or with few branches.
Leaves - Alternate, petiolate, pinnately divided, glabrous, to 5cm long. Petioles to 4-5mm long, sheathing and flattened. Leaflets opposite, lowest pair often divided again (bifurcate), all leaflets filiform.
Inflorescence - Terminal compound umbels. Primary rays of umbels typically 8-11, to 9mm long in flower, longer in fruit, glabrous, subtended by 3-15 unequal threadlike bracts (to +1cm long), glabrous. Umbellets of typically 5-11 flowers. Raylets to 3mm long in flower, longer in fruit, glabrous, subtended by few short threadlike bracts.
Flowers - Petals 5, white, equal, to +/-1.3mm long, 1mm broad, glabrous, apiculate to caudate and incurved at apex. Stamens 5, alternating with petals. Filaments white, .8mm long, glabrous. Anthers pinkish-rose, +/-.3mm long. Styles 2, short, with broad expanded stylopodium. Ovary inferior, 2-locular, with one ovule per locule. Sepals 5, alternating with petals, whitish, triangular-attenuate, .3mm long. Fruits 2.4mm broad, glabrous, ovoid to orbicular, with persistent sepals and styles.
Flowering - June - August.
Habitat - Moist to wet prairies, swampy meadows, wet depressions of glades, wet ground along railroads.
Origin - Native to U.S.
Other info. - This species is small but easy to ID in the field because of its very fine leaves, weak stems, and large umbels of flowers. It grows in moist locations which is another major factor used in identification. The plant can be found in large numbers in some areas, such as prairies.
Photographs taken at the Dorris Creek Prairie Conservation Area, Barton County, MO., 7-28-00, and at Bethel Prairie, Barton County, MO., 7-4-03.
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