文章
Dummer. ゛☀
2017年07月23日
Family - Asclepiadaceae
Stems - To +/-45cm tall, erect, simple, herbaceous, from rhizomes, purplish at the base and apex, with one flat side, mostly glabrous but with hairs in distinct vertical lines on margins of flat side, with milky sap.
Leaves - Lowest leaves in false whorl of 4 (2 higher and 2 lower). Leaves tapering to a short petiole, ovate to elliptic, entire, acuminate, with curly hairs on veins on both surfaces, to +/-9cm long, +/-5cm broad. Margins ciliolate. A pair of leaves typically subtending the inflorescence.
Inflorescence - Terminal and axillary umbels in the apical portion of the stems with +/-15 flowers. Pedicels to 2cm long, tomentoulose on one side, purplish pink.
Flowers - Petals 5, spreading to reflexed, pinkish internally, darker externally (abaxially), to 7mm long, 3.2mm broad, glabrous, acute, elliptic. Hoods whitish to pinkish tinged, 3-4mm long, glabrous, subacute at apex, connected at the base to the anther column. Horns to 3mm long, white, glabrous, converging over the column. Column purplish, 2mm long, -2mm in diameter, white at apex. Pollinia 1mm long, terminator deep purple. Pistils 2, green, 2mm long, glabrous. Ovules many.
Flowering - May - July.
Habitat - Rich or dry rocky open woods, on upland slopes or ridges.
Origin - Native to U.S.
Other info. - This species can be found throughout most of Missouri except for much of the northwestern portion of the state. The plant is easy to identify because of its generally small size, and false whorl of leaves. The plant typically has only one or maybe two false whorls of leaves on the stem.
Stems - To +/-45cm tall, erect, simple, herbaceous, from rhizomes, purplish at the base and apex, with one flat side, mostly glabrous but with hairs in distinct vertical lines on margins of flat side, with milky sap.
Leaves - Lowest leaves in false whorl of 4 (2 higher and 2 lower). Leaves tapering to a short petiole, ovate to elliptic, entire, acuminate, with curly hairs on veins on both surfaces, to +/-9cm long, +/-5cm broad. Margins ciliolate. A pair of leaves typically subtending the inflorescence.
Inflorescence - Terminal and axillary umbels in the apical portion of the stems with +/-15 flowers. Pedicels to 2cm long, tomentoulose on one side, purplish pink.
Flowers - Petals 5, spreading to reflexed, pinkish internally, darker externally (abaxially), to 7mm long, 3.2mm broad, glabrous, acute, elliptic. Hoods whitish to pinkish tinged, 3-4mm long, glabrous, subacute at apex, connected at the base to the anther column. Horns to 3mm long, white, glabrous, converging over the column. Column purplish, 2mm long, -2mm in diameter, white at apex. Pollinia 1mm long, terminator deep purple. Pistils 2, green, 2mm long, glabrous. Ovules many.
Flowering - May - July.
Habitat - Rich or dry rocky open woods, on upland slopes or ridges.
Origin - Native to U.S.
Other info. - This species can be found throughout most of Missouri except for much of the northwestern portion of the state. The plant is easy to identify because of its generally small size, and false whorl of leaves. The plant typically has only one or maybe two false whorls of leaves on the stem.
0
0
文章
Dummer. ゛☀
2017年07月23日
Family - Asclepiadaceae
Stems - Erect, herbaceous but stout, typically simple, from a taproot, with milky sap, pubescent and also with a vertical line of tomentoulose hairs decurrent from the base of each petiole, to +1m tall.
Leaves - Opposite, decussate, short petiolate. Petioles to -1cm long, antrorse pubescent. Blades to +20cm long, 8cm broad, entire, abruptly acute at the apex, abruptly tapering to a rounded base, often with a purple tinge on the midrib adaxially, pubescent and deep green adaxially, light green and densely pubescent abaxially. Lateral venation anastomosing.
Inflorescence - Few axillary pedunculate umbels near the apex of the stems. Peduncles to +/-7cm long, erect, sparse pubescent but tomentoulose on one side. Flowers +/-50 per umbel. Pedicels to +/-2cm long, tomentoulose, subtended by linear bracts. Bracts withering quickly, to +/-6mm long, pubescent.
Flowers - Petals 5, reflexed to spreading, purplish-pink, glabrous, to +1cm long, +/-4mm broad, acute, oblong-lanceolate, entire. Hoods purplish-pink, +/-7mm long (tall), glabrous, connected at the base below the anther column. Horns purplish-white, 2mm long, down-curved and converging at the apex of the anther column. Anther column mostly green (white at the apex), 3-4mm in diameter. Pollinia to -2mm long, the connective deep purple. Pistils 2, glabrous, light green, 3mm long in flower.
Flowering - May - July.
Habitat - Rocky open woods, glades, prairies, stream banks, wet meadows and valleys, thickets, roadsides.
Origin - Native to U.S.
Other info. - This showy species can be found throughout Missouri. The plant is quite striking and would grow with little care in a garden. This species also attracts many flying insects and would be a great addition to a butterfly garden.
The stems of A. purpurascens produce copious amounts of milky sap when injured. This sap can be irritating to some and is toxic if ingested or rubbed in the eyes.
Stems - Erect, herbaceous but stout, typically simple, from a taproot, with milky sap, pubescent and also with a vertical line of tomentoulose hairs decurrent from the base of each petiole, to +1m tall.
Leaves - Opposite, decussate, short petiolate. Petioles to -1cm long, antrorse pubescent. Blades to +20cm long, 8cm broad, entire, abruptly acute at the apex, abruptly tapering to a rounded base, often with a purple tinge on the midrib adaxially, pubescent and deep green adaxially, light green and densely pubescent abaxially. Lateral venation anastomosing.
Inflorescence - Few axillary pedunculate umbels near the apex of the stems. Peduncles to +/-7cm long, erect, sparse pubescent but tomentoulose on one side. Flowers +/-50 per umbel. Pedicels to +/-2cm long, tomentoulose, subtended by linear bracts. Bracts withering quickly, to +/-6mm long, pubescent.
Flowers - Petals 5, reflexed to spreading, purplish-pink, glabrous, to +1cm long, +/-4mm broad, acute, oblong-lanceolate, entire. Hoods purplish-pink, +/-7mm long (tall), glabrous, connected at the base below the anther column. Horns purplish-white, 2mm long, down-curved and converging at the apex of the anther column. Anther column mostly green (white at the apex), 3-4mm in diameter. Pollinia to -2mm long, the connective deep purple. Pistils 2, glabrous, light green, 3mm long in flower.
Flowering - May - July.
Habitat - Rocky open woods, glades, prairies, stream banks, wet meadows and valleys, thickets, roadsides.
Origin - Native to U.S.
Other info. - This showy species can be found throughout Missouri. The plant is quite striking and would grow with little care in a garden. This species also attracts many flying insects and would be a great addition to a butterfly garden.
The stems of A. purpurascens produce copious amounts of milky sap when injured. This sap can be irritating to some and is toxic if ingested or rubbed in the eyes.
0
0
文章
Dummer. ゛☀
2017年07月23日
Family - Asclepiadaceae
Stems - To 1.5m tall, from fibrous roots, erect, herbaceous, glabrous or with a single vertical line of appressed pubescence in the internodes above, with milky sap, branching above.
Leaves - Opposite, petiolate. Petiole to +1.5cm long. Blade to 15cm long, +2cm broad, linear to linear-lanceolate, acuminate, with strigillose margins, sparse appressed pubescent, truncate to rounded at the base.
Inflorescence - Axillary and terminal umbellate cymes of 20-30 flowers each. Peduncles green, to +5cm long, antrorse appressed pubescent, with one vertical line more densely pubescent than rest of peduncle. Pedicels pinkish-rose, sparse pubescent, to 1.4cm long, subtended by linear bracts. Bracts to 6mm long, pubescent.
Flowers - Petals 5, 6mm long, 2.3mm broad, oblong-elliptic, entire, reflexed, glabrous, pink to purple. Hoods 2mm long, 1.2mm broad, pinkish-white. Horns pinkish-white, to 2.5mm long. Gynostegium to 2.5mm long, 1.3mm in diameter. Pollinia 1.1mm long. Calyx lobes 5, reflexed, 2mm long, pubescent, pinkish-green. Follicles to 8cm long, fusiform, typically glabrous.
Flowering - June - August.
Habitat - Moist to wet soils.
Origin - Native to U.S.
Other info. - This species can be found throughout Missouri. The plant is becoming one of the more popular Asclepias in cultivation because of its tall height, striking flowers, and ability to grow in wet soils. It is an obvious butterfly favorite. The flowers of this species are not as large as in some other members of the genus but the plant typically produces many clusters of flowers.
Stems - To 1.5m tall, from fibrous roots, erect, herbaceous, glabrous or with a single vertical line of appressed pubescence in the internodes above, with milky sap, branching above.
Leaves - Opposite, petiolate. Petiole to +1.5cm long. Blade to 15cm long, +2cm broad, linear to linear-lanceolate, acuminate, with strigillose margins, sparse appressed pubescent, truncate to rounded at the base.
Inflorescence - Axillary and terminal umbellate cymes of 20-30 flowers each. Peduncles green, to +5cm long, antrorse appressed pubescent, with one vertical line more densely pubescent than rest of peduncle. Pedicels pinkish-rose, sparse pubescent, to 1.4cm long, subtended by linear bracts. Bracts to 6mm long, pubescent.
Flowers - Petals 5, 6mm long, 2.3mm broad, oblong-elliptic, entire, reflexed, glabrous, pink to purple. Hoods 2mm long, 1.2mm broad, pinkish-white. Horns pinkish-white, to 2.5mm long. Gynostegium to 2.5mm long, 1.3mm in diameter. Pollinia 1.1mm long. Calyx lobes 5, reflexed, 2mm long, pubescent, pinkish-green. Follicles to 8cm long, fusiform, typically glabrous.
Flowering - June - August.
Habitat - Moist to wet soils.
Origin - Native to U.S.
Other info. - This species can be found throughout Missouri. The plant is becoming one of the more popular Asclepias in cultivation because of its tall height, striking flowers, and ability to grow in wet soils. It is an obvious butterfly favorite. The flowers of this species are not as large as in some other members of the genus but the plant typically produces many clusters of flowers.
0
0
文章
Dummer. ゛☀
2017年07月23日
Family - Asclepiadaceae
Stems - From a deep rhizome, simple, single from the base, erect, herbaceous but stout, to -1m tall, +/-1.5cm in diameter at the base, glabrous, glaucous, with copious milky sap when bruised or crushed.
Leaves - Opposite, sessile, clasping, spreading, typically 2-5 pairs on the stem below the inflorescence, thick, to 12cm long, 8cm broad, broadly oblong to oblong-ovate, glabrous, dark-green and glossy adaxially, light green and glaucous abaxially. Midrib lighter in color and contrasting with the leaf tissue. Lateral veins with a reddish tint, anastomosing before the leaf margin. Margins sinuate-crispate. Apex rounded to sub-acute, with a mucro to 1mm long.
Inflorescence - Single terminal umbel with 15-80 flowers. Pedicels to 4.5cm long, +/-1mm in diameter, slightly expanded at the apex, puberulent to tomentose but often on just 1/2 or 2/3 of the circumference (the rest glabrous).
Flowers - Petals 5, reflexed, 1cm long, 4-6mm broad, elliptic, appearing glabrous but actually with a very minute pubescence abaxially, glabrous adaxially, greenish-red, with a slightly inflated tip. Sepals 5, reflexed, hidden by the petals, lanceolate, +/-2mm broad, +/-3mm long, green to reddish, glabrous abaxially, sparse appressed-pubescent adaxially. Hoods pinkish-purple, 4-5mm long, +2mm broad, with a wavy apical margin, glabrous. Horns exserted from the hoods +/-3mm, converging over the column, purple. Column +/-3mm tall, -3mm in diameter. Pollinia 2-2.5mm long. Anther sacs brownish-gold. Terminator purple, .5-.6mm long.
Flowering - April - July.
Habitat - Prairies, glades, rocky open woods, roadsides, railroads.
Origin - Native to U.S.
Other info. - This attractive species can be found scattered throughout much of Missouri. It can be easily identified by its erect, glabrous stems, sessile, clasping leaves, and pinkish flowers. The flowers typically occur in a single terminal inflorescence. The leaves have undulate-crispate margins and are rounded at the apex. All parts of the plants bleed white milky sap when injured.
Stems - From a deep rhizome, simple, single from the base, erect, herbaceous but stout, to -1m tall, +/-1.5cm in diameter at the base, glabrous, glaucous, with copious milky sap when bruised or crushed.
Leaves - Opposite, sessile, clasping, spreading, typically 2-5 pairs on the stem below the inflorescence, thick, to 12cm long, 8cm broad, broadly oblong to oblong-ovate, glabrous, dark-green and glossy adaxially, light green and glaucous abaxially. Midrib lighter in color and contrasting with the leaf tissue. Lateral veins with a reddish tint, anastomosing before the leaf margin. Margins sinuate-crispate. Apex rounded to sub-acute, with a mucro to 1mm long.
Inflorescence - Single terminal umbel with 15-80 flowers. Pedicels to 4.5cm long, +/-1mm in diameter, slightly expanded at the apex, puberulent to tomentose but often on just 1/2 or 2/3 of the circumference (the rest glabrous).
Flowers - Petals 5, reflexed, 1cm long, 4-6mm broad, elliptic, appearing glabrous but actually with a very minute pubescence abaxially, glabrous adaxially, greenish-red, with a slightly inflated tip. Sepals 5, reflexed, hidden by the petals, lanceolate, +/-2mm broad, +/-3mm long, green to reddish, glabrous abaxially, sparse appressed-pubescent adaxially. Hoods pinkish-purple, 4-5mm long, +2mm broad, with a wavy apical margin, glabrous. Horns exserted from the hoods +/-3mm, converging over the column, purple. Column +/-3mm tall, -3mm in diameter. Pollinia 2-2.5mm long. Anther sacs brownish-gold. Terminator purple, .5-.6mm long.
Flowering - April - July.
Habitat - Prairies, glades, rocky open woods, roadsides, railroads.
Origin - Native to U.S.
Other info. - This attractive species can be found scattered throughout much of Missouri. It can be easily identified by its erect, glabrous stems, sessile, clasping leaves, and pinkish flowers. The flowers typically occur in a single terminal inflorescence. The leaves have undulate-crispate margins and are rounded at the apex. All parts of the plants bleed white milky sap when injured.
0
0
文章
Dummer. ゛☀
2017年07月23日
Family - Apocynaceae
Stems - To 2m tall, erect, branching, glabrous, often purplish, terete, with milky sap, herbaceous.
Leaves - Opposite, decussate or not, at least the lower leaves typically drooping, petiolate. Petioles to 6mm long, glabrous to pubescent or not. Blades ovate, acute, mucronate, glabrous adaxially, pubescent to glabrous abaxially, entire, rounded at base, lighter colored abaxially, deep green above, to +10cm long, +5cm broad.
Inflorescence - Terminal pedunculate cymes. Peduncles and pedicels glabrous. Peduncles to 4cm long. Pedicels to 4mm long in flower.
Flowers - Corolla whitish to pink or with pink stripes, 5-7mm long, 5-lobed. Lobes to +3mm long, spreading to recurved, rounded to acute at apex. Stamens 5, erect, connivent around the pistil. Filaments short, thick, with floccose hairs internally at the midpoint, 1.5mm long. Anther connective sagittate, expanded, +/-2.5mm long, golden-yellow. Stamens alternating with green nectaries at base. Anthers with white nectaries internally surrounding the stigmas. Pistils 2, green, glabrous, 1.5-2mm long. Styles united and cylindrical with small a small ring below the stigmas. Placentation axile, seeds (ovules) many. Ovary partially inferior. Calyx tube 1.3mm long, glabrous, 5-lobed. Lobes whitish, acute, triangular, to 2mm long, glabrous.
Flowering - May - July.
Habitat - Dry open rocky woods, thickets, roadsides.
Origin - Native to U.S.
Other info. - This species can be found scattered throughout much of Missouri but is absent from a few locations such as the extreme NW and SW corners of the state. The plant is easy to ID in the field because of its distinctive flowers, which have recurved lobes. This species has the typical white milky sap of the Apocynaceae and can be toxic if eaten. Traditionally the plant was used as an emetic and a diuretic. The strong fibers of the plant can be made into rope.
Stems - To 2m tall, erect, branching, glabrous, often purplish, terete, with milky sap, herbaceous.
Leaves - Opposite, decussate or not, at least the lower leaves typically drooping, petiolate. Petioles to 6mm long, glabrous to pubescent or not. Blades ovate, acute, mucronate, glabrous adaxially, pubescent to glabrous abaxially, entire, rounded at base, lighter colored abaxially, deep green above, to +10cm long, +5cm broad.
Inflorescence - Terminal pedunculate cymes. Peduncles and pedicels glabrous. Peduncles to 4cm long. Pedicels to 4mm long in flower.
Flowers - Corolla whitish to pink or with pink stripes, 5-7mm long, 5-lobed. Lobes to +3mm long, spreading to recurved, rounded to acute at apex. Stamens 5, erect, connivent around the pistil. Filaments short, thick, with floccose hairs internally at the midpoint, 1.5mm long. Anther connective sagittate, expanded, +/-2.5mm long, golden-yellow. Stamens alternating with green nectaries at base. Anthers with white nectaries internally surrounding the stigmas. Pistils 2, green, glabrous, 1.5-2mm long. Styles united and cylindrical with small a small ring below the stigmas. Placentation axile, seeds (ovules) many. Ovary partially inferior. Calyx tube 1.3mm long, glabrous, 5-lobed. Lobes whitish, acute, triangular, to 2mm long, glabrous.
Flowering - May - July.
Habitat - Dry open rocky woods, thickets, roadsides.
Origin - Native to U.S.
Other info. - This species can be found scattered throughout much of Missouri but is absent from a few locations such as the extreme NW and SW corners of the state. The plant is easy to ID in the field because of its distinctive flowers, which have recurved lobes. This species has the typical white milky sap of the Apocynaceae and can be toxic if eaten. Traditionally the plant was used as an emetic and a diuretic. The strong fibers of the plant can be made into rope.
0
0
文章
Dummer. ゛☀
2017年07月22日
Family - Scrophulariaceae
Stems - To +1m tall, erect, herbaceous but stout, terete near the base, angled in the apical 1/2, scaberulous, puberulent, much-branched, from a big taproot, mostly green.
Leaves - Opposite, linear, entire, antrorse strigose, acute, to +3cm long, 1-1.5mm broad, slightly folded, with well developed axillary fascicles. Fascicles as long or longer than the subtending leaf.
Inflorescence - Axillary racemes in the upper 2/3 of the stem. Racemes very bracteate and the inflorescence appearing as just axillary flowers. Flowers single from each leaf (bract) axil, 1-2 per node, opposite. Pedicels 3-5mm long, shorter than or equaling the calyx, glabrous, ascending. Axis of the inflorescence angled, puberulent.
Flowers - Corolla pink, to +2cm long, 5-lobed. Corolla tube densely antrorse pubescent externally, mostly glabrous internally, contracted in the basal 5mm (the portion surrounded by the calyx). Corolla tube with pink spots and two yellow stripes internally (ventrally). Corolla lobes rounded, with pilose margins, to +1cm broad, 1cm long, spreading, the upper two pilose-bearded at the base internally. Stamens 4, didynamous, mostly included. Filaments pale pink to whitish, pink pilose, to +1cm long, adnate at the apex of the contracted portion of the corolla tube. Anthers whitish, pilose dorsally, +/-3mm long, 1.5mm broad, with two acute basal lobes. Style 1, exserted beyond the corolla and from between the stamens, pale purple basally, whitish at the apex, mostly glabrous and terete, flattened and puberulent on the margins in the apical 1/3 (the stigma). Ovary superior, green, glabrous, ovoid, to 2mm long in flower, 2-locular, with many ovules. Placentation axile. Calyx campanulate, green, glabrous, 5mm long in flower, 5-lobed. Lobes 1-1.6mm long, triangular-attenuate with a slight keel that somewhat ribs the calyx tube in the apical 1/2. Most dorsal calyx lobe slightly larger than the others.
Flowering - August - October.
Habitat - Prairies, sandy open ground, thickets, woodland edges, fallow fields.
Origin - Native to U.S.
Other info. - This striking species can be found mainly in southwestern Missouri. The plant can be identified by its big flowers (which have yellow stripes and pink spots internally), and its linear leaves which have well developed axillary fascicles. The plant is very common in states to the south and east and extends up the east coast to Maryland. This species reaches its inland northern limit in Missouri.
A synonym for this species is Gerardia fasciculata Ell.
Stems - To +1m tall, erect, herbaceous but stout, terete near the base, angled in the apical 1/2, scaberulous, puberulent, much-branched, from a big taproot, mostly green.
Leaves - Opposite, linear, entire, antrorse strigose, acute, to +3cm long, 1-1.5mm broad, slightly folded, with well developed axillary fascicles. Fascicles as long or longer than the subtending leaf.
Inflorescence - Axillary racemes in the upper 2/3 of the stem. Racemes very bracteate and the inflorescence appearing as just axillary flowers. Flowers single from each leaf (bract) axil, 1-2 per node, opposite. Pedicels 3-5mm long, shorter than or equaling the calyx, glabrous, ascending. Axis of the inflorescence angled, puberulent.
Flowers - Corolla pink, to +2cm long, 5-lobed. Corolla tube densely antrorse pubescent externally, mostly glabrous internally, contracted in the basal 5mm (the portion surrounded by the calyx). Corolla tube with pink spots and two yellow stripes internally (ventrally). Corolla lobes rounded, with pilose margins, to +1cm broad, 1cm long, spreading, the upper two pilose-bearded at the base internally. Stamens 4, didynamous, mostly included. Filaments pale pink to whitish, pink pilose, to +1cm long, adnate at the apex of the contracted portion of the corolla tube. Anthers whitish, pilose dorsally, +/-3mm long, 1.5mm broad, with two acute basal lobes. Style 1, exserted beyond the corolla and from between the stamens, pale purple basally, whitish at the apex, mostly glabrous and terete, flattened and puberulent on the margins in the apical 1/3 (the stigma). Ovary superior, green, glabrous, ovoid, to 2mm long in flower, 2-locular, with many ovules. Placentation axile. Calyx campanulate, green, glabrous, 5mm long in flower, 5-lobed. Lobes 1-1.6mm long, triangular-attenuate with a slight keel that somewhat ribs the calyx tube in the apical 1/2. Most dorsal calyx lobe slightly larger than the others.
Flowering - August - October.
Habitat - Prairies, sandy open ground, thickets, woodland edges, fallow fields.
Origin - Native to U.S.
Other info. - This striking species can be found mainly in southwestern Missouri. The plant can be identified by its big flowers (which have yellow stripes and pink spots internally), and its linear leaves which have well developed axillary fascicles. The plant is very common in states to the south and east and extends up the east coast to Maryland. This species reaches its inland northern limit in Missouri.
A synonym for this species is Gerardia fasciculata Ell.
0
0
文章
Dummer. ゛☀
2017年07月22日
Family - Agavaceae
Stems - Essentially absent. Flowering stem to +2.5m tall.
Leaves - All basal, linear, to 4cm wide, 1m long, margins often appearing shredded with coarse, curly fibers, spine-tipped. Leaves of the stem reduced to scales.
Inflorescence - Single large panicle, 2-3m tall, axis somewhat pubescent. Pedicels 1.1cm long, dense pubescent.
Flowers - Petals 3, acute to acuminate, white, glabrous, ovate to ovate-lanceolate, to 4cm long, 2.5cm broad, succulent. Sepals 3, white, acute to acuminate, to +4cm long, 2cm broad, elliptic, glabrous, succulent. Stamens 6. Filaments clavate, 2cm long, dense pubescent, slightly bent. Anthers small, yellow. Ovary superior, greenish-white, puberulent, 3-locular. Placentation axile. Pistil +2cm long. Stigma 3-lobed, each lobe sometimes divided again and appearing as six shallow lobes. Fruit a 6 angled capsule to +5cm long, +3cm in diameter. Seeds many, flat, +6mm broad.
Flowering - May - August.
Habitat - Cultivated but escaping to various localities.
Origin - Native of southern U.S.
Other info. - This species can be found cultivated throughout Missouri and is commonly escaped. It is very showy when in bloom and is easily recognizable.
The leaf fibers of various Yuccas and Agaves can be mechanically extracted and used to make rope with very high tensile strength.
Stems - Essentially absent. Flowering stem to +2.5m tall.
Leaves - All basal, linear, to 4cm wide, 1m long, margins often appearing shredded with coarse, curly fibers, spine-tipped. Leaves of the stem reduced to scales.
Inflorescence - Single large panicle, 2-3m tall, axis somewhat pubescent. Pedicels 1.1cm long, dense pubescent.
Flowers - Petals 3, acute to acuminate, white, glabrous, ovate to ovate-lanceolate, to 4cm long, 2.5cm broad, succulent. Sepals 3, white, acute to acuminate, to +4cm long, 2cm broad, elliptic, glabrous, succulent. Stamens 6. Filaments clavate, 2cm long, dense pubescent, slightly bent. Anthers small, yellow. Ovary superior, greenish-white, puberulent, 3-locular. Placentation axile. Pistil +2cm long. Stigma 3-lobed, each lobe sometimes divided again and appearing as six shallow lobes. Fruit a 6 angled capsule to +5cm long, +3cm in diameter. Seeds many, flat, +6mm broad.
Flowering - May - August.
Habitat - Cultivated but escaping to various localities.
Origin - Native of southern U.S.
Other info. - This species can be found cultivated throughout Missouri and is commonly escaped. It is very showy when in bloom and is easily recognizable.
The leaf fibers of various Yuccas and Agaves can be mechanically extracted and used to make rope with very high tensile strength.
0
0
文章
Dummer. ゛☀
2017年07月22日
Family - Violaceae
Stems - To +30cm tall, herbaceous, multiple from caudex or short rhizomes, glabrous.
Leaves - Lower leaves glabrous, on petiole to +/-5cm long, serrate. Blade reniform to cordate, apex rounded or acute, to +2cm broad, +1.7cm long. Upper leaves glabrous, on petioles to +3cm long, cordate, serrate, to +4cm long, +3cm broad. Stipules at base of petiole to 2cm long, -1cm broad, lanceolate, margins distinctly lacerate.
Inflorescence - Single flower from leaf axil. Peduncle to +8cm long, glabrous, curved at apex, with two bracts somewhere in upper half. Bracts attenuate, to 9mm long, 1mm broad.
Flowers - Corolla to 2.5cm broad, +2cm long. Petals 5, creamy white with purple venation inside. Lateral petals bearded just on upper half near "throat" of corolla. Lower petal spurred at base (saccate). Stamens 5, connate around ovary, lower two with curved nectaries to 3mm long extending into petal spur. Ovary conic, glabrous. Style to -3mm long, with bristles near apex, triangular at tip. Sepals 5, to 1.4cm long, 2mm broad, linear, with scarious margins, minutely ciliate near base. Auricles to -3mm long, rounded or somewhat pointed.
Flowering - April - June.
Habitat - Rich moist ground of slopes, woods, streambanks.
Origin - Native to U.S.
Other info. - This is an easy Viola to identify because of the lacerate stipules, cream-colored flowers, and the fact that the flowers arise from the leaf axils. It is common in low-alluvial areas. V. striata can associated with other neat plants such as Elymus virginicus and Laportea canadensis.
Stems - To +30cm tall, herbaceous, multiple from caudex or short rhizomes, glabrous.
Leaves - Lower leaves glabrous, on petiole to +/-5cm long, serrate. Blade reniform to cordate, apex rounded or acute, to +2cm broad, +1.7cm long. Upper leaves glabrous, on petioles to +3cm long, cordate, serrate, to +4cm long, +3cm broad. Stipules at base of petiole to 2cm long, -1cm broad, lanceolate, margins distinctly lacerate.
Inflorescence - Single flower from leaf axil. Peduncle to +8cm long, glabrous, curved at apex, with two bracts somewhere in upper half. Bracts attenuate, to 9mm long, 1mm broad.
Flowers - Corolla to 2.5cm broad, +2cm long. Petals 5, creamy white with purple venation inside. Lateral petals bearded just on upper half near "throat" of corolla. Lower petal spurred at base (saccate). Stamens 5, connate around ovary, lower two with curved nectaries to 3mm long extending into petal spur. Ovary conic, glabrous. Style to -3mm long, with bristles near apex, triangular at tip. Sepals 5, to 1.4cm long, 2mm broad, linear, with scarious margins, minutely ciliate near base. Auricles to -3mm long, rounded or somewhat pointed.
Flowering - April - June.
Habitat - Rich moist ground of slopes, woods, streambanks.
Origin - Native to U.S.
Other info. - This is an easy Viola to identify because of the lacerate stipules, cream-colored flowers, and the fact that the flowers arise from the leaf axils. It is common in low-alluvial areas. V. striata can associated with other neat plants such as Elymus virginicus and Laportea canadensis.
0
0
文章
Dummer. ゛☀
2017年07月22日
Family - Violaceae
Stems - A stout, thick, elongated caudex.
Leaves - Alternate, arising from ground level. Petioles to 12cm long, glabrous or with some pubescence near base of blade, with single vertical groove running the length of the petiole. Blade to +4cm broad, +3.5cm long, cordate at base, crenate to serrate, glabrous. Lower leaves typically reniform. Upper leaves with a pointed apex, ovate to deltoid.
Inflorescence - Single flowers arising from the base of plant. Peduncles glabrous, to +15cm long, curved at apex, with a pair of small bracts about in the middle of the peduncle. In early spring the flowers much exceed the leaves. Later, the leaves exceed the flowers.
peduncle.
Flowers - Corolla solid white, to 4cm broad. Petals 5. Lateral petals bearded near "throat" of corolla. Lower petal saccate at base, with dark striping and fading to a dull yellow at base. Stamens 5, connate around ovary, two lowest with nectaries. Style deltoid at apex. Sepals 5, 8-9mm long, 3-4mm broad, lanceolate to linear, green with lighter margins, entire, glabrous or with a few hairs at base, rounded at base. auricles 1-2mm long.
Fruit - Capsule to +1cm long, 5-6mm in diameter, slightly 3-angled with angles greatly rounded, glabrous. Seeds numerous. Placentation parietal.
Flowering - March - June and sometimes again around October - November.
Habitat - Waste ground, fields, meadows, low woods, ditches, roadsides, railroads.
Origin - Native to U.S.
Other info. - This is form of V. papilionacea is the least common. For other forms see the V. papilionacea page in the "Blue flowers alternate" section of this website.
Stems - A stout, thick, elongated caudex.
Leaves - Alternate, arising from ground level. Petioles to 12cm long, glabrous or with some pubescence near base of blade, with single vertical groove running the length of the petiole. Blade to +4cm broad, +3.5cm long, cordate at base, crenate to serrate, glabrous. Lower leaves typically reniform. Upper leaves with a pointed apex, ovate to deltoid.
Inflorescence - Single flowers arising from the base of plant. Peduncles glabrous, to +15cm long, curved at apex, with a pair of small bracts about in the middle of the peduncle. In early spring the flowers much exceed the leaves. Later, the leaves exceed the flowers.
peduncle.
Flowers - Corolla solid white, to 4cm broad. Petals 5. Lateral petals bearded near "throat" of corolla. Lower petal saccate at base, with dark striping and fading to a dull yellow at base. Stamens 5, connate around ovary, two lowest with nectaries. Style deltoid at apex. Sepals 5, 8-9mm long, 3-4mm broad, lanceolate to linear, green with lighter margins, entire, glabrous or with a few hairs at base, rounded at base. auricles 1-2mm long.
Fruit - Capsule to +1cm long, 5-6mm in diameter, slightly 3-angled with angles greatly rounded, glabrous. Seeds numerous. Placentation parietal.
Flowering - March - June and sometimes again around October - November.
Habitat - Waste ground, fields, meadows, low woods, ditches, roadsides, railroads.
Origin - Native to U.S.
Other info. - This is form of V. papilionacea is the least common. For other forms see the V. papilionacea page in the "Blue flowers alternate" section of this website.
0
0
文章
Dummer. ゛☀
2017年07月22日
Family - Fabaceae
Stems - Sprawling to clambering or climbing (by means of tendrils on leaves), herbaceous, from taproot, villous, carinate to angled.
Leaves - Alternate, even-pinnate, stipulate, to +13cm long, with +/-10 pairs of leaflets, terminating with a branched tendril. Stipules foliaceous, lance-ovate, to +/-1cm long, villous. Leaflets alternate to subopposite, on short petiolules, linear-oblong to linear-lanceolate, mucronate, entire, to +2cm long, +/-6mm broad, dense pubescent.
Inflorescence - Pedunculate spiciform axillary raceme to +/-7cm long. Flowers secund. Peduncle to +/-6cm long, carinate, villous. Flowers nodding. Pedicels to 2mm long, connected to lower portion of calyx tube.
Flowers - Corolla white, papilionaceous, glabrous. Standard to 1.3cm long, 7mm broad at apex, notched. Wing petals adhering to keel petals. Stamens 10, diadelphous, to 1cm long, glabrous. Style upcurved, pubescent at apex. Ovary compressed, green, glabrous, 6-7mm long, on short gynophore. Calyx tube to 3mm long, villous below(sparse above), bilabiate. Upper lip reduced, with two shallow lobes. Lobes to 1mm long, acuminate. Lower lip 3-lobed. Lateral two lobes to 4mm long, -1mm broad. Central lobe to 6mm long, -1mm broad, villous. Fruit compressed, to 3cm long, 1cm broad, pubescent, few seeded.
Flowering - April - October.
Habitat - Railroads.
Origin - Native to Europe.
Other info. - The plant pictured above was the first finding of V. villosa f. albiflora in Missouri. It was found in Swope Park in Jackson County by some railroad tracks. Typical V. villosa has blue-purple flowers and is very common. The species is an introduced weed and is very aggressive.
Here is a pic of both forms of the plant growing side by side:
Stems - Sprawling to clambering or climbing (by means of tendrils on leaves), herbaceous, from taproot, villous, carinate to angled.
Leaves - Alternate, even-pinnate, stipulate, to +13cm long, with +/-10 pairs of leaflets, terminating with a branched tendril. Stipules foliaceous, lance-ovate, to +/-1cm long, villous. Leaflets alternate to subopposite, on short petiolules, linear-oblong to linear-lanceolate, mucronate, entire, to +2cm long, +/-6mm broad, dense pubescent.
Inflorescence - Pedunculate spiciform axillary raceme to +/-7cm long. Flowers secund. Peduncle to +/-6cm long, carinate, villous. Flowers nodding. Pedicels to 2mm long, connected to lower portion of calyx tube.
Flowers - Corolla white, papilionaceous, glabrous. Standard to 1.3cm long, 7mm broad at apex, notched. Wing petals adhering to keel petals. Stamens 10, diadelphous, to 1cm long, glabrous. Style upcurved, pubescent at apex. Ovary compressed, green, glabrous, 6-7mm long, on short gynophore. Calyx tube to 3mm long, villous below(sparse above), bilabiate. Upper lip reduced, with two shallow lobes. Lobes to 1mm long, acuminate. Lower lip 3-lobed. Lateral two lobes to 4mm long, -1mm broad. Central lobe to 6mm long, -1mm broad, villous. Fruit compressed, to 3cm long, 1cm broad, pubescent, few seeded.
Flowering - April - October.
Habitat - Railroads.
Origin - Native to Europe.
Other info. - The plant pictured above was the first finding of V. villosa f. albiflora in Missouri. It was found in Swope Park in Jackson County by some railroad tracks. Typical V. villosa has blue-purple flowers and is very common. The species is an introduced weed and is very aggressive.
Here is a pic of both forms of the plant growing side by side:
0
0
文章
Dummer. ゛☀
2017年07月22日
Family - Asteraceae
Stems - To +2m tall, winged,(wing to +/-3mm broad), erect, herbaceous, pubescent, from fibrous roots, typically simple, single or multiple from base.
Leaves - Alternate, petiolate. Petioles winged(tissue decurrent on stem). Blade ovate to oblong-lanceolate, to +15cm long, +6cm broad, acute to acuminate, typically glabrous above, sometimes scabrous, appressed hairy to short hirsute below, typically entire.
Inflorescence - Terminal corymbiform cluster of many flower heads. Peduncles pubescent to subtomentose.
Involucre - To -1cm tall (long), 5-6mm broad. Phyllaries imbricate, linear-oblong, densely pubescent, appressed, acute.
Ray flowers - Fertile (pistillate), ~5 per flower head. Ligule white, glabrous, to 9mm long, 5mm broad, notched at apex, broadly oblong.
Disk flowers - Disk to +5mm broad. Flowers +/-7 per head. Corolla whitish, 5 lobed. Lobes acute, +1mm long, spreading. Stamens 5, slightly exserted. Anthers purplish-black, to 2mm ong, connate around style. Style whitish, bifurcate, exserted. Achenes compressed, typically winged. Pappus of two short awns.
Flowering - August - October.
Habitat - Open woods, streambanks, thickets.
Origin - Native to U.S.
Other info. - This plant is common in the southern half of Missouri and apparently absent in the northern half of the state. There are yellow flowered species of this genus in Missouri but this is the only white flowered species. The winged stems and dense corymbiform clusters of flower heads are good characteristics for identifying the plant in the field.
Stems - To +2m tall, winged,(wing to +/-3mm broad), erect, herbaceous, pubescent, from fibrous roots, typically simple, single or multiple from base.
Leaves - Alternate, petiolate. Petioles winged(tissue decurrent on stem). Blade ovate to oblong-lanceolate, to +15cm long, +6cm broad, acute to acuminate, typically glabrous above, sometimes scabrous, appressed hairy to short hirsute below, typically entire.
Inflorescence - Terminal corymbiform cluster of many flower heads. Peduncles pubescent to subtomentose.
Involucre - To -1cm tall (long), 5-6mm broad. Phyllaries imbricate, linear-oblong, densely pubescent, appressed, acute.
Ray flowers - Fertile (pistillate), ~5 per flower head. Ligule white, glabrous, to 9mm long, 5mm broad, notched at apex, broadly oblong.
Disk flowers - Disk to +5mm broad. Flowers +/-7 per head. Corolla whitish, 5 lobed. Lobes acute, +1mm long, spreading. Stamens 5, slightly exserted. Anthers purplish-black, to 2mm ong, connate around style. Style whitish, bifurcate, exserted. Achenes compressed, typically winged. Pappus of two short awns.
Flowering - August - October.
Habitat - Open woods, streambanks, thickets.
Origin - Native to U.S.
Other info. - This plant is common in the southern half of Missouri and apparently absent in the northern half of the state. There are yellow flowered species of this genus in Missouri but this is the only white flowered species. The winged stems and dense corymbiform clusters of flower heads are good characteristics for identifying the plant in the field.
0
0
文章
Dummer. ゛☀
2017年07月22日
Family - Scrophulariaceae
Stems - To +1m tall, glabrous below, glandular pubescent in the inflorescence, carinate, from large taproot, herbaceous, branching above or simple, erect.
Leaves - Basal leaves in rosette, pinnately lobed, to +17cm long, +/-5cm broad, oblanceolate, sessile, glabrous or with very sparse pubescence below on midrib, often rugose above. Lobes serrate to crenate-serrate or crisped. Cauline leaves alternate, sessile, clasping, bi-serrate, lanceolate, reduced above, glabrous or with sparse hairs on midrib below. Leaves in inflorescence reduced to bracts.
Inflorescence - Terminal spiciform indeterminate raceme to +40cm tall, elongating in fruit. Flowers subtended by foliaceous bracts. Bracts and axis densely glandular pubescent. Pedicels to +1cm long in flower, longer in fruit, 1.1mm in diameter, dense glandular pubescent.
Flowers - Corolla zygomorphic, 5-lobed, white, to -4cm broad. Lobes rounded, glabrous. Stamens 5, filaments to 9mm long, densely villous, the pubescence wine in color. Anthers 3mm broad, bright orange. Style filiform, glabrous, 1cm long, purple. Ovary superior, densely glandular, subglobose, 2-locular. Placentation axile. Calyx 5-lobed, densely glandular pubescent. Tube to -1mm long. Lobes to 8mm long, -3mm broad, recurved, linear. Fruit a globose capsule to 8mm in diameter, many seeded, glandular pubescent.
Flowering - May - September.
Habitat - Pastures, rocky open ground, waste ground, rocky streambanks, roadsides, railroads.
Origin - Native to U.S.
Other info. - This is an interesting plant. The upper portion of the stems are densely glandular pubescent and the flowers are brilliant and neat to look at. The densely pubescent filaments contrast the white of the corolla and make for a striking display. I always wonder why people go to garden centers to buy plants when some of the best plants are growing on the side of the road. This plant is easy to grow from seed and produces huge quantities of it. The globose fruits contain many tiny seeds each.
There is another form of the species, form blattaria, which has a yellow corolla, but otherwise is identical. You can find this form in the "Yellow Flowers Leaves Alternate" section of this website. Both forms are common in Missouri except for in the Northwest corner of the state where the plant seems to be absent.
Stems - To +1m tall, glabrous below, glandular pubescent in the inflorescence, carinate, from large taproot, herbaceous, branching above or simple, erect.
Leaves - Basal leaves in rosette, pinnately lobed, to +17cm long, +/-5cm broad, oblanceolate, sessile, glabrous or with very sparse pubescence below on midrib, often rugose above. Lobes serrate to crenate-serrate or crisped. Cauline leaves alternate, sessile, clasping, bi-serrate, lanceolate, reduced above, glabrous or with sparse hairs on midrib below. Leaves in inflorescence reduced to bracts.
Inflorescence - Terminal spiciform indeterminate raceme to +40cm tall, elongating in fruit. Flowers subtended by foliaceous bracts. Bracts and axis densely glandular pubescent. Pedicels to +1cm long in flower, longer in fruit, 1.1mm in diameter, dense glandular pubescent.
Flowers - Corolla zygomorphic, 5-lobed, white, to -4cm broad. Lobes rounded, glabrous. Stamens 5, filaments to 9mm long, densely villous, the pubescence wine in color. Anthers 3mm broad, bright orange. Style filiform, glabrous, 1cm long, purple. Ovary superior, densely glandular, subglobose, 2-locular. Placentation axile. Calyx 5-lobed, densely glandular pubescent. Tube to -1mm long. Lobes to 8mm long, -3mm broad, recurved, linear. Fruit a globose capsule to 8mm in diameter, many seeded, glandular pubescent.
Flowering - May - September.
Habitat - Pastures, rocky open ground, waste ground, rocky streambanks, roadsides, railroads.
Origin - Native to U.S.
Other info. - This is an interesting plant. The upper portion of the stems are densely glandular pubescent and the flowers are brilliant and neat to look at. The densely pubescent filaments contrast the white of the corolla and make for a striking display. I always wonder why people go to garden centers to buy plants when some of the best plants are growing on the side of the road. This plant is easy to grow from seed and produces huge quantities of it. The globose fruits contain many tiny seeds each.
There is another form of the species, form blattaria, which has a yellow corolla, but otherwise is identical. You can find this form in the "Yellow Flowers Leaves Alternate" section of this website. Both forms are common in Missouri except for in the Northwest corner of the state where the plant seems to be absent.
0
0
文章
Dummer. ゛☀
2017年07月22日
Family - Ericaceae
Stems - To +60cm tall, typically some shade of green and without a great deal of bark except at very base, branching, erect to ascending(in young stems), twigs and new growth pubescent to tomentose, stoloniferous, shrubby.
Leaves - Alternate, short-petiolate. Petioles to 2-3mm long, pubescent. Blades elliptic to obovate, short-acute to short-acuminate, glabrous to pubescent and green above, tomentose and glaucous below, to +3cm long, +2cm broad. Margins appearing entire but actually crenulate-serrulate(especially in younger leaves), often reddish at very edge of margin.
Inflorescence - Flowers appearing with the new seasons leaves from terminal and axillary buds. Racemes to 1.5cm long in flower, longer in fruit. Bracts subtending pedicels obovate, to +/-3mm long, with small mucro tip, cupped. Small pair of bractlets on base of pedicel to -3mm long, glabrous, with a few cilia on margins or not, lanceolate, acuminate.
Flowers - Corolla urceolate to cylindric, 5-6mm long, 4mm in diameter, glabrous, white or with some pink, 5-lobed. Lobes recurved, acute, 1.1mm long. Stamens 10, included. Filaments compressed, antrorse pubescent, 2mm long, greenish-white. Anthers copper-colored, 2-lobed, 2mm long. Style green, included, 5mm long, glabrous. Ovary inferior, 2-locular. Calyx tube 1.7mm long, 5-lobed, glabrous, green. Lobes shallow, rounded, light green, 1mm long. Berries globose, glaucous, blue-purple, 5-6mm in diameter, tasty.
Flowering - April - May.
Habitat - Dry rocky open woods, ledges, bluffs, glades, ridges, typically in acid soil.
Origin - Native to U.S.
Other info. - This small, shrubby species is common in the lower 1/2 of Missouri. The plant produces a tasty blueberry in the summer which is enjoyed by wildlife as well as people. The plant is distinguishable from the two other Missouri blueberries by the fact that it is the smaller of the 3 species, it has leaves which are glaucous below, and the stems are typically mostly herbaceous and some shade of green. The other two species of Vaccinium in Missouri become woody very early on in their growth.
A synonym for this species is V. pallidum Ait.
When small and immature, the 3 species of Vaccinium in Missouri can be difficult to differentiate in the field. The best way to tell the species apart is by looking at the leaf venation. The venation of V. arboreum is spaced widely apart. The venation of V. vacillans is spaced fairly close together. The veins of V. stamineum are very close together and sometimes hard to see. In the photo below, the venation of all three species is shown. From left to right the species are V. arboreum, V. stamineum and V. vacillans.
Stems - To +60cm tall, typically some shade of green and without a great deal of bark except at very base, branching, erect to ascending(in young stems), twigs and new growth pubescent to tomentose, stoloniferous, shrubby.
Leaves - Alternate, short-petiolate. Petioles to 2-3mm long, pubescent. Blades elliptic to obovate, short-acute to short-acuminate, glabrous to pubescent and green above, tomentose and glaucous below, to +3cm long, +2cm broad. Margins appearing entire but actually crenulate-serrulate(especially in younger leaves), often reddish at very edge of margin.
Inflorescence - Flowers appearing with the new seasons leaves from terminal and axillary buds. Racemes to 1.5cm long in flower, longer in fruit. Bracts subtending pedicels obovate, to +/-3mm long, with small mucro tip, cupped. Small pair of bractlets on base of pedicel to -3mm long, glabrous, with a few cilia on margins or not, lanceolate, acuminate.
Flowers - Corolla urceolate to cylindric, 5-6mm long, 4mm in diameter, glabrous, white or with some pink, 5-lobed. Lobes recurved, acute, 1.1mm long. Stamens 10, included. Filaments compressed, antrorse pubescent, 2mm long, greenish-white. Anthers copper-colored, 2-lobed, 2mm long. Style green, included, 5mm long, glabrous. Ovary inferior, 2-locular. Calyx tube 1.7mm long, 5-lobed, glabrous, green. Lobes shallow, rounded, light green, 1mm long. Berries globose, glaucous, blue-purple, 5-6mm in diameter, tasty.
Flowering - April - May.
Habitat - Dry rocky open woods, ledges, bluffs, glades, ridges, typically in acid soil.
Origin - Native to U.S.
Other info. - This small, shrubby species is common in the lower 1/2 of Missouri. The plant produces a tasty blueberry in the summer which is enjoyed by wildlife as well as people. The plant is distinguishable from the two other Missouri blueberries by the fact that it is the smaller of the 3 species, it has leaves which are glaucous below, and the stems are typically mostly herbaceous and some shade of green. The other two species of Vaccinium in Missouri become woody very early on in their growth.
A synonym for this species is V. pallidum Ait.
When small and immature, the 3 species of Vaccinium in Missouri can be difficult to differentiate in the field. The best way to tell the species apart is by looking at the leaf venation. The venation of V. arboreum is spaced widely apart. The venation of V. vacillans is spaced fairly close together. The veins of V. stamineum are very close together and sometimes hard to see. In the photo below, the venation of all three species is shown. From left to right the species are V. arboreum, V. stamineum and V. vacillans.
0
0
文章
Dummer. ゛☀
2017年07月22日
Family - Orchidaceae
Stems - To +15cm tall, from tuberous root bases and stolons, (the tubers forming at the tips of the stolons), herbaceous, erect, fleshy, purplish at base, glabrous, forming small colonies.
Leaves - Alternate, clasping, scalelike below, becoming ovate above, acute, entire, glabrous, to +/-1.2cm long, +/-9mm broad.
Inflorescence - Single axillary flowers, typically 3-4 per plant. Flowers erect (but nodding while in bud). Pedicels erect, to 1cm long, glabrous.
Flowers - Whitish, to 2cm long. Floral tube -5mm long, glabrous. Petals 3. Lower petal white, 1.4cm long, greenish, with a bearded strip internally, 3-lobed. Central lobe to +5mm long, with eros margins. Lateral lobes rounded, 2-3mm long. Upper petals linear, white, 1.6cm long, 2-3mm broad. Column 1.1cm long, green at the base, white apically, glabrous. Pollinia purple. Pollen pinkish-purple. Ovary inferior, unilocular. Placentation parietal. Sepals 3, white, glabrous, 1.8cm long, 2-3mm broad, subfalcate, cupped. Petals and sepals sometimes with a purplish tinge.
Flowering - July - October.
Habitat - Mesic woods, ravines, stream valleys, bottoms.
Origin - Native to U.S.
Other info. - This small species is mainly found in the lower 1/2 of Missouri. The white flowers only last for one day and are frequented by bees from the family Halictidae. Reports say that plants in a common area will all flower on the same day.
The genus and species name for the plant both mean "bearing three" because the plant typically has three flowers present at once.
Stems - To +15cm tall, from tuberous root bases and stolons, (the tubers forming at the tips of the stolons), herbaceous, erect, fleshy, purplish at base, glabrous, forming small colonies.
Leaves - Alternate, clasping, scalelike below, becoming ovate above, acute, entire, glabrous, to +/-1.2cm long, +/-9mm broad.
Inflorescence - Single axillary flowers, typically 3-4 per plant. Flowers erect (but nodding while in bud). Pedicels erect, to 1cm long, glabrous.
Flowers - Whitish, to 2cm long. Floral tube -5mm long, glabrous. Petals 3. Lower petal white, 1.4cm long, greenish, with a bearded strip internally, 3-lobed. Central lobe to +5mm long, with eros margins. Lateral lobes rounded, 2-3mm long. Upper petals linear, white, 1.6cm long, 2-3mm broad. Column 1.1cm long, green at the base, white apically, glabrous. Pollinia purple. Pollen pinkish-purple. Ovary inferior, unilocular. Placentation parietal. Sepals 3, white, glabrous, 1.8cm long, 2-3mm broad, subfalcate, cupped. Petals and sepals sometimes with a purplish tinge.
Flowering - July - October.
Habitat - Mesic woods, ravines, stream valleys, bottoms.
Origin - Native to U.S.
Other info. - This small species is mainly found in the lower 1/2 of Missouri. The white flowers only last for one day and are frequented by bees from the family Halictidae. Reports say that plants in a common area will all flower on the same day.
The genus and species name for the plant both mean "bearing three" because the plant typically has three flowers present at once.
0
0
文章
Dummer. ゛☀
2017年07月22日
Family - Fabaceae
Stems - Multiple from a taproot, ascending, herbaceous, purple in strong sun, terete and sometimes carinate, pilose or glabrous, to +/-30cm tall, branching.
Leaves - Alternate, trifoliolate, stipulate, petiolate. Stipules to +2cm long, 1cm broad, ovate to lanceolate, acuminate, entire or with crenulate margins, pilose. Petioles pilose, to +10cm long. Leaflets sessile, pilose, equal, emarginate to rounded at the apex, with or without a minute mucro, obovate to rhombic or spatulate, with serrulate margins, to 4cm long. Upper leaves reduced.
Inflorescence - Terminal pedunculate globose umbel +/-50 flowers. Peduncle pilose or glabrous and carinate, to 10cm long. Pedicels 3-4mm long, pilose. Flowers erect to spreading at first but quickly reflexed.
Flowers - Corolla papilionaceous, white to greenish-white. Standard whitish-green, 8-10mm long, 4-5mm broad, glabrous. Wings and keels to 7-8mm long. Wings connate to the keels at about the middle. Stamens diadelphous. Stamen tube white, to 3mm long, glabrous. Free portion of the filaments to 3mm long and deflexed. Anthers yellow, to 1mm long. Ovary superior, green, 3mm long, mostly glabrous but with white floccose hairs at the apex, slightly compressed. Style 3mm long, greenish-white, glabrous, deflexed at the apex. Stigma small, capitate, yellowish. Corolla drying brown and persistent around the developing fruit. Calyx 5-lobed. Calyx tube to -2mm long, pilose or glabrous externally, glabrous internally. Lobes linear, subequal (4 equal and the lowest slightly smaller), acute, ciliate or glabrous, 4-5mm long. Fruit inflated, to 5mm long, on a stipe to 1.5mm long.
Flowering - May - August.
Habitat - Rocky open woods, glades, old fields, prairies. Typically on acid soils.
Origin - Native to U.S.
Other info. - This species can be found throughout much of Missouri. The plant is fairly easy to identify in the field because of its big flower heads and reflexed fruits. There are two varieties of the species in Missouri. Variety reflexum (pictured above) has hairy stems and calices. Variety glabrum Lojacono has stems and calices which are glabrous. The two varieties may not be valid.
Stems - Multiple from a taproot, ascending, herbaceous, purple in strong sun, terete and sometimes carinate, pilose or glabrous, to +/-30cm tall, branching.
Leaves - Alternate, trifoliolate, stipulate, petiolate. Stipules to +2cm long, 1cm broad, ovate to lanceolate, acuminate, entire or with crenulate margins, pilose. Petioles pilose, to +10cm long. Leaflets sessile, pilose, equal, emarginate to rounded at the apex, with or without a minute mucro, obovate to rhombic or spatulate, with serrulate margins, to 4cm long. Upper leaves reduced.
Inflorescence - Terminal pedunculate globose umbel +/-50 flowers. Peduncle pilose or glabrous and carinate, to 10cm long. Pedicels 3-4mm long, pilose. Flowers erect to spreading at first but quickly reflexed.
Flowers - Corolla papilionaceous, white to greenish-white. Standard whitish-green, 8-10mm long, 4-5mm broad, glabrous. Wings and keels to 7-8mm long. Wings connate to the keels at about the middle. Stamens diadelphous. Stamen tube white, to 3mm long, glabrous. Free portion of the filaments to 3mm long and deflexed. Anthers yellow, to 1mm long. Ovary superior, green, 3mm long, mostly glabrous but with white floccose hairs at the apex, slightly compressed. Style 3mm long, greenish-white, glabrous, deflexed at the apex. Stigma small, capitate, yellowish. Corolla drying brown and persistent around the developing fruit. Calyx 5-lobed. Calyx tube to -2mm long, pilose or glabrous externally, glabrous internally. Lobes linear, subequal (4 equal and the lowest slightly smaller), acute, ciliate or glabrous, 4-5mm long. Fruit inflated, to 5mm long, on a stipe to 1.5mm long.
Flowering - May - August.
Habitat - Rocky open woods, glades, old fields, prairies. Typically on acid soils.
Origin - Native to U.S.
Other info. - This species can be found throughout much of Missouri. The plant is fairly easy to identify in the field because of its big flower heads and reflexed fruits. There are two varieties of the species in Missouri. Variety reflexum (pictured above) has hairy stems and calices. Variety glabrum Lojacono has stems and calices which are glabrous. The two varieties may not be valid.
0
0
