文章
Dummer. ゛☀
2017年07月30日
Family - Asteraceae
Stems - Thin erect, simple, herbaceous, typically single from the base, from a long horizontal rhizome, typically purplish and somewhat glaucous, mostly glabrous but with a few pustulate based hairs directly below the nodes, terete, 2-4mm in diameter at the base, -1m tall, with +/-10 nodes below the flowers.
Leaves - Opposite, decussate, sessile or very-short petiolate. Petioles to 2mm long. Blades lanceolate, attenuate, shallow serrate, very scabrous on the top, less scabrous below, rounded at the base, the lowest to +10cm long, +/-2cm broad at the base, with two lateral veins arising from the base of the blade. Teeth of the margins often with a minute white tip.
Inflorescence - Single terminal flower head, typically just one per stem.
Involucre - -2cm broad in flower, 2.5cm broad in fruit. Phyllaries lanceolate, scabrous externally, glabrous internally, acuminate, to 1cm long and 5mm broad at the base, spreading with the tips ascending, light green, with ciliolate margins, imbricate.
Ray flowers - 8-9 flower per head, sterile. Ligule yellow, oblong, 2.5-3cm long, to 1cm broad, glabrous, acute with a very small single notch at the apex. Corolla tube -1mm long, glabrous. Achenes (in flower) -3mm long. Pappus of ray flowers a pair of serrate awns to 2mm long.
Disk flowers - Disk 1-1.5cm broad in flower, up to 2cm long in fruit. Flowers yellow. Corolla tube 3-4mm long, yellow, mostly glabrous but with some antrorse strigose pubescence externally (mostly in lines), glabrous internally, abruptly contracted at the basal 1mm. Lobes 5, 1-1.3mm long in flower, acute, erect to spreading. Stamens 5, included, adnate at the apex of the constricted portion of the corolla tube. Filaments white glabrous , 3mm long. Anthers maroon 3mm long, connate around the style, mostly included. Style exserted , glabrous, white, bifurcate, +/-5mm long. Stigmas yellow, to +2mm long, pubescent, reflexed. Achenes (in flower) white, glabrous, 3-4mm long. Pappus of 2 awns as in the ray flowers. Awns 2-3mm long. Receptacle hemispheric. Chaff enclosing the disk flowers almost entirely, to -1cm long, glabrous in basal half, pubescent on the margins and apex, slightly yellowish at the apex, acute, with a slightly reddish tip.
Flowering - July - October.
Habitat - Rocky woods and thickets.
Origin - Native to U.S.
Other info. - This species can be found in the eastern-most counties of Missouri (essentially in the counties bordering the Mississippi River). The plant can be identified by its opposite, scabrous, sessile to nearly sessile leaves (which have rounded bases), thin stems, and long rhizomes.
Stems - Thin erect, simple, herbaceous, typically single from the base, from a long horizontal rhizome, typically purplish and somewhat glaucous, mostly glabrous but with a few pustulate based hairs directly below the nodes, terete, 2-4mm in diameter at the base, -1m tall, with +/-10 nodes below the flowers.
Leaves - Opposite, decussate, sessile or very-short petiolate. Petioles to 2mm long. Blades lanceolate, attenuate, shallow serrate, very scabrous on the top, less scabrous below, rounded at the base, the lowest to +10cm long, +/-2cm broad at the base, with two lateral veins arising from the base of the blade. Teeth of the margins often with a minute white tip.
Inflorescence - Single terminal flower head, typically just one per stem.
Involucre - -2cm broad in flower, 2.5cm broad in fruit. Phyllaries lanceolate, scabrous externally, glabrous internally, acuminate, to 1cm long and 5mm broad at the base, spreading with the tips ascending, light green, with ciliolate margins, imbricate.
Ray flowers - 8-9 flower per head, sterile. Ligule yellow, oblong, 2.5-3cm long, to 1cm broad, glabrous, acute with a very small single notch at the apex. Corolla tube -1mm long, glabrous. Achenes (in flower) -3mm long. Pappus of ray flowers a pair of serrate awns to 2mm long.
Disk flowers - Disk 1-1.5cm broad in flower, up to 2cm long in fruit. Flowers yellow. Corolla tube 3-4mm long, yellow, mostly glabrous but with some antrorse strigose pubescence externally (mostly in lines), glabrous internally, abruptly contracted at the basal 1mm. Lobes 5, 1-1.3mm long in flower, acute, erect to spreading. Stamens 5, included, adnate at the apex of the constricted portion of the corolla tube. Filaments white glabrous , 3mm long. Anthers maroon 3mm long, connate around the style, mostly included. Style exserted , glabrous, white, bifurcate, +/-5mm long. Stigmas yellow, to +2mm long, pubescent, reflexed. Achenes (in flower) white, glabrous, 3-4mm long. Pappus of 2 awns as in the ray flowers. Awns 2-3mm long. Receptacle hemispheric. Chaff enclosing the disk flowers almost entirely, to -1cm long, glabrous in basal half, pubescent on the margins and apex, slightly yellowish at the apex, acute, with a slightly reddish tip.
Flowering - July - October.
Habitat - Rocky woods and thickets.
Origin - Native to U.S.
Other info. - This species can be found in the eastern-most counties of Missouri (essentially in the counties bordering the Mississippi River). The plant can be identified by its opposite, scabrous, sessile to nearly sessile leaves (which have rounded bases), thin stems, and long rhizomes.
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文章
Dummer. ゛☀
2017年07月30日
Family - Asteraceae
Stems - To 2m tall, from a short woody caudex and thickened roots, herbaceous, erect, glabrous, glaucous, branching in apical 1/2, fistulose, single from the base.
Leaves - Opposite, decussate, petiolate, trifoliolate. Petioles glabrous, to 2cm long. Bases of opposing petioles connected and enveloping the stem. Lateral leaflets sessile. Terminal leaflet with a short petiolule (to 5mm long). Leaflets entire, pubescent abaxially, very sparse pubescent adaxially, acute, oblong-lanceolate to lanceolate, to 11cm long, 3.5cm broad. Venation is tuberculate adaxially and plainly visible below. Margins thickened and antrorse strigillose.
Inflorescence - A flat-topped cymose arrangement of flower heads.
Involucre - Biseriate, to 6mm tall (long), 7mm in diameter. Outer phyllaries green and linear, +/-6 in number, very sparse pubescent, +/-5mm long, 1mm broad, rounded at apex. Inner phyllaries broad, green at base, yellow in apical 1/2, pubescent externally, glabrous internally, the apices bent and spreading outward, acute, 7-8mm long, 3-4mm broad.
Ray flowers - Sterile, typically 8 per flower head. Ligules yellow, to +/-3cm long, to 1cm broad, glabrous or with very few hairs near base by the corolla tube. Achene compressed, to 3.5mm long in flower, yellowish, mostly glabrous but with some pubescence at apex. Pappus of short eros scales.
Disk flowers - Disk to -1cm broad. Corolla 5mm long, contracted at base for about 1mm, dark purple at apex, 5-lobed. LObes acute, triangular, spreading to recurved, +/-.8mm long. Stamens 5, adnate at apex of contracted portion of corolla tube. Filaments white, glabrous, compressed, 2.1mm long, with an obvious midvein. Anthers purple, to 2.3mm long, connate around the style, partially exserted. Style glabrous, pale yellow, slightly swollen at base, bifurcate, purple in apical portion (stigmas). Achenes compressed, greenish-white in flower, glabrous, 3mm long. Pappus of short eros scales. Receptacle flat. Chaff thin, glabrous, golden at the apex, 7-8mm long, .3mm broad.
Flowering - July - September.
Habitat - Prairies, rocky open woods, bluffs, thickets, roadsides, railroads.
Origin - Native to U.S.
Other info. - This tall species of Coreopsis is found throughout Missouri except in a few counties in the "bootheel." The plant is tolerant of dry conditions and would make a good garden specimen. This plant is easy to ID in the field because of its glabrous, glaucous stems and its trifoliolate leaves. Occasionally a small plant will have leaves which are undivided.
Stems - To 2m tall, from a short woody caudex and thickened roots, herbaceous, erect, glabrous, glaucous, branching in apical 1/2, fistulose, single from the base.
Leaves - Opposite, decussate, petiolate, trifoliolate. Petioles glabrous, to 2cm long. Bases of opposing petioles connected and enveloping the stem. Lateral leaflets sessile. Terminal leaflet with a short petiolule (to 5mm long). Leaflets entire, pubescent abaxially, very sparse pubescent adaxially, acute, oblong-lanceolate to lanceolate, to 11cm long, 3.5cm broad. Venation is tuberculate adaxially and plainly visible below. Margins thickened and antrorse strigillose.
Inflorescence - A flat-topped cymose arrangement of flower heads.
Involucre - Biseriate, to 6mm tall (long), 7mm in diameter. Outer phyllaries green and linear, +/-6 in number, very sparse pubescent, +/-5mm long, 1mm broad, rounded at apex. Inner phyllaries broad, green at base, yellow in apical 1/2, pubescent externally, glabrous internally, the apices bent and spreading outward, acute, 7-8mm long, 3-4mm broad.
Ray flowers - Sterile, typically 8 per flower head. Ligules yellow, to +/-3cm long, to 1cm broad, glabrous or with very few hairs near base by the corolla tube. Achene compressed, to 3.5mm long in flower, yellowish, mostly glabrous but with some pubescence at apex. Pappus of short eros scales.
Disk flowers - Disk to -1cm broad. Corolla 5mm long, contracted at base for about 1mm, dark purple at apex, 5-lobed. LObes acute, triangular, spreading to recurved, +/-.8mm long. Stamens 5, adnate at apex of contracted portion of corolla tube. Filaments white, glabrous, compressed, 2.1mm long, with an obvious midvein. Anthers purple, to 2.3mm long, connate around the style, partially exserted. Style glabrous, pale yellow, slightly swollen at base, bifurcate, purple in apical portion (stigmas). Achenes compressed, greenish-white in flower, glabrous, 3mm long. Pappus of short eros scales. Receptacle flat. Chaff thin, glabrous, golden at the apex, 7-8mm long, .3mm broad.
Flowering - July - September.
Habitat - Prairies, rocky open woods, bluffs, thickets, roadsides, railroads.
Origin - Native to U.S.
Other info. - This tall species of Coreopsis is found throughout Missouri except in a few counties in the "bootheel." The plant is tolerant of dry conditions and would make a good garden specimen. This plant is easy to ID in the field because of its glabrous, glaucous stems and its trifoliolate leaves. Occasionally a small plant will have leaves which are undivided.
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文章
Dummer. ゛☀
2017年07月30日
Family - Asteraceae
Stems - To 1m tall, erect, with fibrous roots, multiple from base, branching in apical 1/2, hirsute, slightly scabrous, herbaceous. Hairs of the stem multicellular.
Leaves - Opposite, petiolate. Petioles to +/-1.5cm long, hirsute, minutely winged with decurrent leaf tissue. Blades ovate-lanceolate, entire, acuminate, to +/-8cm long, +/-3.5cm broad, pubescent abaxially (slightly scabrous), mostly glabrous adaxially, lighter green abaxially, often with two small lateral lobes at base.
Inflorescence - Single flower heads terminating long peduncles. Peduncles to +15cm long, pubescent near base, glabrous near apex.
Involucre - Phyllaries in two series. Outer phyllaries 8, green, subulate to lanceolate, to 7mm long, 1.7mm broad, spreading, glabrous, with scarious margins, with some short cilia at apex. Inner phyllaries yellow-green, erect and spreading in apical 1/2, lanceolate, 9mm long, +/-3mm broad, glabrous.
Ray flowers - Typically 8 per flower head, sterile. Ligules to 1.5cm long, 8-9mm broad, glabrous, distinctly notched or lobed at apex. Achenes (in flower) 1.3mm long, .9mm broad, compressed, white. Pappus absent.
Disk flowers - Disk 6-8mm broad. Flowers yellow, 5-lobed. Corolla tube 4mm long, glabrous. Achenes with two small scales as pappus, compressed, glabrous, winged, tuberculate, 2.5-3mm long in fruit, black when mature, greenish-white in flower. Receptacle convex. Chaff 6mm long, compressed, whitish at base, becoming thin and yellow at apex.
Flowering - May - October.
Habitat - Rocky open woods, base of wooded bluffs, low ground, gravel stream beds, alluvial thickets, railroads.
Origin - Native to U.S.
Other info. - This species can be found mainly in the lower 1/2 of Missouri. A small population also occurs in the northeast corner of the state. This plant can be easy to ID because of its pubescent stems and leaves, distinctive leaf shape, and deeply notched ray ligules. The plant does well in cultivation and grows well from seed.
Stems - To 1m tall, erect, with fibrous roots, multiple from base, branching in apical 1/2, hirsute, slightly scabrous, herbaceous. Hairs of the stem multicellular.
Leaves - Opposite, petiolate. Petioles to +/-1.5cm long, hirsute, minutely winged with decurrent leaf tissue. Blades ovate-lanceolate, entire, acuminate, to +/-8cm long, +/-3.5cm broad, pubescent abaxially (slightly scabrous), mostly glabrous adaxially, lighter green abaxially, often with two small lateral lobes at base.
Inflorescence - Single flower heads terminating long peduncles. Peduncles to +15cm long, pubescent near base, glabrous near apex.
Involucre - Phyllaries in two series. Outer phyllaries 8, green, subulate to lanceolate, to 7mm long, 1.7mm broad, spreading, glabrous, with scarious margins, with some short cilia at apex. Inner phyllaries yellow-green, erect and spreading in apical 1/2, lanceolate, 9mm long, +/-3mm broad, glabrous.
Ray flowers - Typically 8 per flower head, sterile. Ligules to 1.5cm long, 8-9mm broad, glabrous, distinctly notched or lobed at apex. Achenes (in flower) 1.3mm long, .9mm broad, compressed, white. Pappus absent.
Disk flowers - Disk 6-8mm broad. Flowers yellow, 5-lobed. Corolla tube 4mm long, glabrous. Achenes with two small scales as pappus, compressed, glabrous, winged, tuberculate, 2.5-3mm long in fruit, black when mature, greenish-white in flower. Receptacle convex. Chaff 6mm long, compressed, whitish at base, becoming thin and yellow at apex.
Flowering - May - October.
Habitat - Rocky open woods, base of wooded bluffs, low ground, gravel stream beds, alluvial thickets, railroads.
Origin - Native to U.S.
Other info. - This species can be found mainly in the lower 1/2 of Missouri. A small population also occurs in the northeast corner of the state. This plant can be easy to ID because of its pubescent stems and leaves, distinctive leaf shape, and deeply notched ray ligules. The plant does well in cultivation and grows well from seed.
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文章
Dummer. ゛☀
2017年07月30日
Family - Asteraceae
Stems - From a small crown and rhizomes, single or multiple from the base, herbaceous, erect, to -1m tall, simple to branching, green with light green vertical striations, somewhat carinate or not, somewhat angled in the upper 1/2, mostly glabrous or with a few hairs at the nodes, +/-3mm in diameter.
Leaves - Opposite, sessile, decussate, 3-5-lobed in the apical 1/2, shaped like a turkey foot, deep green above and below, sometimes with light green around the midvein abaxially, to +/-6cm long, antrorse strigillose above and below and on margins. Lobes 3-6mm broad, entire, typically with a minute whitish tip (use a lens to see). The central lobe typically longer than the lateral lobes. All the main veins of the leaf coming from the very base of the leaf. Leaves reduced to bracts in the inflorescence.
Inflorescence - Single pedunculate flower head terminating each stem. Some flowers axillary from the upper leaf axils. Peduncle typically naked, glabrous, slightly expanded just below the involucre.
Involucre - Biseriate. Outer series of +/-12 phyllaries. Phyllaries subulate-linear, entire, ascending, 6-7mm long, 2mm broad, rounded at the apex, with sparse strigose-ciliate margins. Inner phyllaries yellow-brown, bent outward in the apical 1/3, glabrous, 4-5mm broad, 7-9mm long, oblanceolate to spatulate, rounded to subacute at apex, with brown vertical striations, green at base.
Ray flowers - Sterile, 8-10 per flower head. Ligule yellow, 2-3cm long, +/-1cm broad, mostly glabrous or with a few hairs on the veins below, with 2 impressed veins near the base, 3-toothed at the apex, elliptic-oblong. Corolla tube greenish, +/-3mm long, with sparse multicellular trichomes. The trichomes pilosulous. Achenes compressed, brown at maturity, glabrous, with scarious margins, truncate apically and basally, to 5mm long. Pappus none.
Disk flowers - Disk -1cm broad. Corolla tube 5mm long, yellow, 5-lobed, constricted at the base and opaque, expanded in the apical 1/2 and translucent yellow, with a few multicellular trichomes at the apex of the constriction. Apical 1/2 with 5 brown vertical nerves. Lobes erect, acute, -1mm long. Stamens 5, adnate at the base of the expanded portion of the corolla tube. Filaments yellow, glabrous, +2mm long, with a visible midvein, slightly compressed. Anthers brown-purple, 2-2.2mm long, partially exserted, connate around the style. Style bifurcate, exserted beyond the anthers, yellow in the apical 1/2, white basally, glabrous. Stigmas short, yellow, broadly lanceolate, +/-1mm long. Achenes as in the ray flowers but often thinner. Pappus none. Receptacle flat. Chaff linear, translucent, 7-9mm long, with brown vertical striations, slightly expanded at the apex, .3mm broad or less.
Flowering - May - July.
Habitat - Prairies, glades, fallow fields, rocky open woods, thickets, roadsides.
Origin - Native to U.S.
Other info. - This striking species is a common roadside plant in the Ozarks in early summer. It is usually on of the first members of its genus to bloom. The plant is easy to ID in the field because of its parted, opposite leaves. It would make an easy garden subject and should be cultivated more.
Stems - From a small crown and rhizomes, single or multiple from the base, herbaceous, erect, to -1m tall, simple to branching, green with light green vertical striations, somewhat carinate or not, somewhat angled in the upper 1/2, mostly glabrous or with a few hairs at the nodes, +/-3mm in diameter.
Leaves - Opposite, sessile, decussate, 3-5-lobed in the apical 1/2, shaped like a turkey foot, deep green above and below, sometimes with light green around the midvein abaxially, to +/-6cm long, antrorse strigillose above and below and on margins. Lobes 3-6mm broad, entire, typically with a minute whitish tip (use a lens to see). The central lobe typically longer than the lateral lobes. All the main veins of the leaf coming from the very base of the leaf. Leaves reduced to bracts in the inflorescence.
Inflorescence - Single pedunculate flower head terminating each stem. Some flowers axillary from the upper leaf axils. Peduncle typically naked, glabrous, slightly expanded just below the involucre.
Involucre - Biseriate. Outer series of +/-12 phyllaries. Phyllaries subulate-linear, entire, ascending, 6-7mm long, 2mm broad, rounded at the apex, with sparse strigose-ciliate margins. Inner phyllaries yellow-brown, bent outward in the apical 1/3, glabrous, 4-5mm broad, 7-9mm long, oblanceolate to spatulate, rounded to subacute at apex, with brown vertical striations, green at base.
Ray flowers - Sterile, 8-10 per flower head. Ligule yellow, 2-3cm long, +/-1cm broad, mostly glabrous or with a few hairs on the veins below, with 2 impressed veins near the base, 3-toothed at the apex, elliptic-oblong. Corolla tube greenish, +/-3mm long, with sparse multicellular trichomes. The trichomes pilosulous. Achenes compressed, brown at maturity, glabrous, with scarious margins, truncate apically and basally, to 5mm long. Pappus none.
Disk flowers - Disk -1cm broad. Corolla tube 5mm long, yellow, 5-lobed, constricted at the base and opaque, expanded in the apical 1/2 and translucent yellow, with a few multicellular trichomes at the apex of the constriction. Apical 1/2 with 5 brown vertical nerves. Lobes erect, acute, -1mm long. Stamens 5, adnate at the base of the expanded portion of the corolla tube. Filaments yellow, glabrous, +2mm long, with a visible midvein, slightly compressed. Anthers brown-purple, 2-2.2mm long, partially exserted, connate around the style. Style bifurcate, exserted beyond the anthers, yellow in the apical 1/2, white basally, glabrous. Stigmas short, yellow, broadly lanceolate, +/-1mm long. Achenes as in the ray flowers but often thinner. Pappus none. Receptacle flat. Chaff linear, translucent, 7-9mm long, with brown vertical striations, slightly expanded at the apex, .3mm broad or less.
Flowering - May - July.
Habitat - Prairies, glades, fallow fields, rocky open woods, thickets, roadsides.
Origin - Native to U.S.
Other info. - This striking species is a common roadside plant in the Ozarks in early summer. It is usually on of the first members of its genus to bloom. The plant is easy to ID in the field because of its parted, opposite leaves. It would make an easy garden subject and should be cultivated more.
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文章
Dummer. ゛☀
2017年07月29日
Family - Commelinaceae
Stems - Single or multiple from the base, from thickened roots, to 30cm tall, erect, herbaceous, glabrous basally, puberulent at the apex, slightly zig-zag. Hairs of the stem with thickened pustulate bases, multicellular (of 2-3 cells).
Leaves - Alternate, sessile, sheathing at the base, with the blades narrower than their flattened and unfolded sheaths. Sheaths glabrous, with long pilose hairs on the margins. Leaf blades linear, grass-like, sparsely hairy, with long cilia on the margins basally, to +30cm long, to +/-1.5cm broad, entire, green above, silvery-green below with parallel venation.
Inflorescence - Terminal umbel of 2-many flowers. Flowers subtended by 1-2 foliaceous bracts. Bracts sessile, pubescent, broader and shorter than the leaves. Flowers opening a few at a time. Pedicels pinkish-green, +/-2.5cm long, densely spreading pubescent with short and long multicellular hairs.
Flowers - Petals 3, purple to pinkish-red, broadly ovate, to 2cm long and broad, glabrous, spreading. Stamens 6, erect. Filaments +/-6mm long, purple, glabrous in the apical 1/2, densely pubescent with long, purple, multicellular hairs in the basal 1/2. Anthers yellow, 2-lobed, +2.5mm broad. Ovary light green, glabrous, 2mm long, +/-1.3mm broad. Style +3mm long, glabrous, purplish. Sepals 3, to 1.5cm long, +/-7mm broad, elliptic, entire, slightly inflated, acute, densely pubescent externally, glabrous internally, distinct.
Flowering - April - June.
Habitat - Mesic to dry upland forests, shaded ledges of bluffs, open rocky woods, glade edges, railroads.
Origin - Native to U.S.
Other info. - This striking species can be found mainly in the eastern half of Missouri in counties that border the Missouri and Mississippi rivers. The plant can be identified by its small size, pubescent sepals, and narrow leaves. This species seems to prefer acidic soils but would do well in cultivation and makes an attractive garden specimen.
Stems - Single or multiple from the base, from thickened roots, to 30cm tall, erect, herbaceous, glabrous basally, puberulent at the apex, slightly zig-zag. Hairs of the stem with thickened pustulate bases, multicellular (of 2-3 cells).
Leaves - Alternate, sessile, sheathing at the base, with the blades narrower than their flattened and unfolded sheaths. Sheaths glabrous, with long pilose hairs on the margins. Leaf blades linear, grass-like, sparsely hairy, with long cilia on the margins basally, to +30cm long, to +/-1.5cm broad, entire, green above, silvery-green below with parallel venation.
Inflorescence - Terminal umbel of 2-many flowers. Flowers subtended by 1-2 foliaceous bracts. Bracts sessile, pubescent, broader and shorter than the leaves. Flowers opening a few at a time. Pedicels pinkish-green, +/-2.5cm long, densely spreading pubescent with short and long multicellular hairs.
Flowers - Petals 3, purple to pinkish-red, broadly ovate, to 2cm long and broad, glabrous, spreading. Stamens 6, erect. Filaments +/-6mm long, purple, glabrous in the apical 1/2, densely pubescent with long, purple, multicellular hairs in the basal 1/2. Anthers yellow, 2-lobed, +2.5mm broad. Ovary light green, glabrous, 2mm long, +/-1.3mm broad. Style +3mm long, glabrous, purplish. Sepals 3, to 1.5cm long, +/-7mm broad, elliptic, entire, slightly inflated, acute, densely pubescent externally, glabrous internally, distinct.
Flowering - April - June.
Habitat - Mesic to dry upland forests, shaded ledges of bluffs, open rocky woods, glade edges, railroads.
Origin - Native to U.S.
Other info. - This striking species can be found mainly in the eastern half of Missouri in counties that border the Missouri and Mississippi rivers. The plant can be identified by its small size, pubescent sepals, and narrow leaves. This species seems to prefer acidic soils but would do well in cultivation and makes an attractive garden specimen.
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文章
Dummer. ゛☀
2017年07月29日
Family - Asteraceae
Stems - From a short rhizome, erect, herbaceous, to +60cm tall, typically densely puberulent (more so above), terete, 2-4mm in diameter, branching near the apex (in the inflorescence), green.
Leaves - Alternate, petiolate. Petioles of the early-season basal rosette to +6cm long, pubescent abaxially, scabrous adaxially, the narrow wings forming an adaxial groove. Petioles of the upper leaves reduced in length but with much more broad wings. Blades cordate, ovate, serrate, to +6cm long, +3.5cm broad, green above, lighter below, scabrous above, soft pubescent below. Veins expressed below.
Inflorescence - Open, paniculate inflorescence at the apex of the plant. Leaves reduced to small bracts in the inflorescence. Branches densely puberulent. Heads on minutely branched peduncles to +/-1cm long. Bracts of the peduncles subulate, pubescent, +/-3mm long, 1mm broad, acute.
Involucre - +/-5mm long (tall), +/-2mm broad (in diameter). Phyllaries imbricate, glabrous, 2-3.5mm long, -1mm broad, acute, whitish-translucent below, with elongate diamond-shaped green tips. Margins sometimes ciliate at the tips and sometimes with a minute red apex.
Ray flowers - +/-12 per head, fertile, pistillate. Ligules blue to white, +/-6mm long, to 1.5mm broad, glabrous. Corolla tube 2mm long, glabrous, whitish. Style partially to fully exserted about 1mm beyond corolla, bifurcate. Stigmas yellow, .5-.8mm long, erect to spreading, glabrous. Pappus white, of capillary bristles, to +/-3mm long. Achenes (in flower) glabrous, 2mm long, oblong.
Disk flowers - Disk 2-3mm broad, with +/-10 flowers. Corolla tube +/-3.5mm long, glabrous, whitish to pale yellow when fresh, contracted in the basal 1/2, expanded in the apical 1/2, 5-lobed. Lobes erect, acute, .5-.8mm long, .5mm broad at the base, glabrous. Stamens 5, adnate at the base of the expanded portion of the corolla tube. Filaments translucent, 1mm long, glabrous. Anthers yellow, connate around the style, 1-1.5mm long, partially to fully exserted. Style barely exserted beyond the anthers, bifurcate, translucent, glabrous. Stigmas +/-1mm long, erect, whitish. Pappus white, of capillary bristles, to +/-3mm long. Receptacle flat, without chaff. Matyre achenes not seen. Disk flowers quickly becoming purplish with age.
Flowering - August - October.
Habitat - Rocky or dry open woods, thickets, rocky prairies.
Origin - Native to U.S.
Other info. - This attractive species can be found throughout most of Missouri but is apparently uncommon to absent in many counties from the central Ozark region. The plant is similar to other blue-flowered asters but can be identified by its pubescent stems, winged leaf petioles, scabrous adaxial leaf surfaces, and bluish ray flowers. The phyllaries of the involucre have green apices which are an elongate diamond shape.
Stems - From a short rhizome, erect, herbaceous, to +60cm tall, typically densely puberulent (more so above), terete, 2-4mm in diameter, branching near the apex (in the inflorescence), green.
Leaves - Alternate, petiolate. Petioles of the early-season basal rosette to +6cm long, pubescent abaxially, scabrous adaxially, the narrow wings forming an adaxial groove. Petioles of the upper leaves reduced in length but with much more broad wings. Blades cordate, ovate, serrate, to +6cm long, +3.5cm broad, green above, lighter below, scabrous above, soft pubescent below. Veins expressed below.
Inflorescence - Open, paniculate inflorescence at the apex of the plant. Leaves reduced to small bracts in the inflorescence. Branches densely puberulent. Heads on minutely branched peduncles to +/-1cm long. Bracts of the peduncles subulate, pubescent, +/-3mm long, 1mm broad, acute.
Involucre - +/-5mm long (tall), +/-2mm broad (in diameter). Phyllaries imbricate, glabrous, 2-3.5mm long, -1mm broad, acute, whitish-translucent below, with elongate diamond-shaped green tips. Margins sometimes ciliate at the tips and sometimes with a minute red apex.
Ray flowers - +/-12 per head, fertile, pistillate. Ligules blue to white, +/-6mm long, to 1.5mm broad, glabrous. Corolla tube 2mm long, glabrous, whitish. Style partially to fully exserted about 1mm beyond corolla, bifurcate. Stigmas yellow, .5-.8mm long, erect to spreading, glabrous. Pappus white, of capillary bristles, to +/-3mm long. Achenes (in flower) glabrous, 2mm long, oblong.
Disk flowers - Disk 2-3mm broad, with +/-10 flowers. Corolla tube +/-3.5mm long, glabrous, whitish to pale yellow when fresh, contracted in the basal 1/2, expanded in the apical 1/2, 5-lobed. Lobes erect, acute, .5-.8mm long, .5mm broad at the base, glabrous. Stamens 5, adnate at the base of the expanded portion of the corolla tube. Filaments translucent, 1mm long, glabrous. Anthers yellow, connate around the style, 1-1.5mm long, partially to fully exserted. Style barely exserted beyond the anthers, bifurcate, translucent, glabrous. Stigmas +/-1mm long, erect, whitish. Pappus white, of capillary bristles, to +/-3mm long. Receptacle flat, without chaff. Matyre achenes not seen. Disk flowers quickly becoming purplish with age.
Flowering - August - October.
Habitat - Rocky or dry open woods, thickets, rocky prairies.
Origin - Native to U.S.
Other info. - This attractive species can be found throughout most of Missouri but is apparently uncommon to absent in many counties from the central Ozark region. The plant is similar to other blue-flowered asters but can be identified by its pubescent stems, winged leaf petioles, scabrous adaxial leaf surfaces, and bluish ray flowers. The phyllaries of the involucre have green apices which are an elongate diamond shape.
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Dummer. ゛☀
2017年07月29日
Family - Liliaceae
Stems - Aerial stems to +15cm tall, erect, green, glabrous, angled, purplish near apex, from small bulb. Bulb +/-1cm in diameter, with fibrous roots.
Leaves - Basal, typically 2-3 per plant, folded longitudinally at base, entire, linear to narrowly oblong, to +/-20cm long, 1.5cm broad.
Inflorescence - Few flowered raceme terminating the aerial stem, sometimes just single-flowered. Pedicels purple, 6-9mm long, glabrous, subtended by small scales. Scales light purple, succulent, to 1.5mm long.
Flowers - Tepals 6, 1.5-1.7cm long, 5-6mm broad, blue, glabrous, oblong to narrowly ovate, entire, with a single blue midvein. Stamens 6, adnate to the base of the tepals. Filaments white, erect, 8mm long, glabrous, compressed at base. Anthers blue, 2.1mm long. Style 6mm long, purple, glabrous. Ovary green, superior, 4mm long, 3-angled, 3-locular. Placentation axile. Seeds (ovules) many.
Flowering - March - April.
Habitat - Mesic bottoms, moist slopes, roadsides, fields.
Origin - Native to Russia.
Other info. - This attractive little garden species has escaped to a few counties in Missouri but is widely cultivated. Where escaped it can be quite aggressive and locally abundant.
The typical flower color is blue but colors vary depending on the cultivar. So far, only the blue flowered plants are found wild in Missouri. Like most plants in the genus, this species is toxic.
Stems - Aerial stems to +15cm tall, erect, green, glabrous, angled, purplish near apex, from small bulb. Bulb +/-1cm in diameter, with fibrous roots.
Leaves - Basal, typically 2-3 per plant, folded longitudinally at base, entire, linear to narrowly oblong, to +/-20cm long, 1.5cm broad.
Inflorescence - Few flowered raceme terminating the aerial stem, sometimes just single-flowered. Pedicels purple, 6-9mm long, glabrous, subtended by small scales. Scales light purple, succulent, to 1.5mm long.
Flowers - Tepals 6, 1.5-1.7cm long, 5-6mm broad, blue, glabrous, oblong to narrowly ovate, entire, with a single blue midvein. Stamens 6, adnate to the base of the tepals. Filaments white, erect, 8mm long, glabrous, compressed at base. Anthers blue, 2.1mm long. Style 6mm long, purple, glabrous. Ovary green, superior, 4mm long, 3-angled, 3-locular. Placentation axile. Seeds (ovules) many.
Flowering - March - April.
Habitat - Mesic bottoms, moist slopes, roadsides, fields.
Origin - Native to Russia.
Other info. - This attractive little garden species has escaped to a few counties in Missouri but is widely cultivated. Where escaped it can be quite aggressive and locally abundant.
The typical flower color is blue but colors vary depending on the cultivar. So far, only the blue flowered plants are found wild in Missouri. Like most plants in the genus, this species is toxic.
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Dummer. ゛☀
2017年07月29日
Family - Campanulaceae
Stems - To 1m tall, angular, glabrous to pubescent on angles, herbaceous, with milky sap.
Leaves - Alternate, sessile, oblong to lanceolate or oblanceolate, 2-6cm broad, to 15cm long, crisped or toothed(or both) on margins, typically pubescent on both surfaces, acute at the apex.
Inflorescence - Terminal raceme with +20 flowers. Flowers subtended by foliaceous bracts.
Flowers - Resupinate. Corolla purple-blue, tubular, 2-3cm long, with perforations (fenestrate), 5-lobed. Filaments united into a tube to 1.5cm long and surrounding style. Pedicels with pair of small bracteoles at or above the middle. Calyx pubescent to glabrous, +/-1.5cm long. Calyx lobes 5-6mm broad, with auricles at base.
Flowering - August - October.
Habitat - Wet areas.
Origin - Native to U.S.
Other info. - Steyermark splits the species into two varieties. The most common being variety siphilitica. A white flowered form of var. siphilitica, f. albiflora, is presented on the "White flowers alternate" portion of this website. Another form, form purpurea Palmer &Steyermark, has very deep purple flowers.
The second variety is variety ludoviciana A. DC., which has fewer flowers in the inflorescence and leaves and stems which are mostly glabrous. The two varieties intergrade and may not be valid.
This species is quite common along pond margins and and in wet woods and meadows. The brilliant flowers have earned the plant a place in cultivation and it is becoming quite common. The plant is somewhat toxic.
Stems - To 1m tall, angular, glabrous to pubescent on angles, herbaceous, with milky sap.
Leaves - Alternate, sessile, oblong to lanceolate or oblanceolate, 2-6cm broad, to 15cm long, crisped or toothed(or both) on margins, typically pubescent on both surfaces, acute at the apex.
Inflorescence - Terminal raceme with +20 flowers. Flowers subtended by foliaceous bracts.
Flowers - Resupinate. Corolla purple-blue, tubular, 2-3cm long, with perforations (fenestrate), 5-lobed. Filaments united into a tube to 1.5cm long and surrounding style. Pedicels with pair of small bracteoles at or above the middle. Calyx pubescent to glabrous, +/-1.5cm long. Calyx lobes 5-6mm broad, with auricles at base.
Flowering - August - October.
Habitat - Wet areas.
Origin - Native to U.S.
Other info. - Steyermark splits the species into two varieties. The most common being variety siphilitica. A white flowered form of var. siphilitica, f. albiflora, is presented on the "White flowers alternate" portion of this website. Another form, form purpurea Palmer &Steyermark, has very deep purple flowers.
The second variety is variety ludoviciana A. DC., which has fewer flowers in the inflorescence and leaves and stems which are mostly glabrous. The two varieties intergrade and may not be valid.
This species is quite common along pond margins and and in wet woods and meadows. The brilliant flowers have earned the plant a place in cultivation and it is becoming quite common. The plant is somewhat toxic.
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Dummer. ゛☀
2017年07月28日
Family - Asteraceae
Stems - To 1m tall, herbaceous, branching in apical 1/2, moderately antrorse pubescent (densely in inflorescence), erect, from rhizomes and thickened roots, terete.
Leaves - Alternate, sessile, clasping, auriculate. Internodes below the inflorescence 2-3cm long. Blades entire, acute, oblong, to +6cm long, 1.5-2cm broad, scabrous, sparse pubescent above, more so below. Leaves greatly reduced in inflorescence to bracts. Lower cauline leaves typically dried by anthesis.
Inflorescence - Terminal flower heads in a loose paniculate arrangement. Peduncles long, with greatly reduced leaves, striate.
Involucre - Cylindric, to 5-6mm long, 4-5mm in diameter. Phyllaries imbricate, glandular pubescent and puberulent, just the apices spreading and often reddish-purple, glabrous internally in the basal 2/3, with scarious margins and a green midrib, acuminate, 4-5mm long, 1-1.2mm broad, linear-oblong.
Ray flowers - Flowers 15-20 per head, fertile, pistillate. Ligules blue, to +1cm long, 2-2.5mm broad, minutely 3-lobed at apex (use a lens to see), glabrous. Corolla tube pubescent, whitish, 4-5mm long. Style exserted from beyond the corolla tube, white, glabrous. Stigmas yellow, 1.1mm long. Achenes quadrangular, white, densely retrorse ciliate, 1mm long in flower. Pappus of barbellate capillary bristles to 5mm long. Bristles tan to cinnamon.
Disk flowers - Disk 5-9mm broad. Corolla pale yellow, to 6mm long, glabrous, 5-lobed. Lobes acute, mostly erect, .8mm long, yellow. Stamens 5, slightly exserted, adnate at the base of the corolla tube. Filaments thin, glabrous, translucent. Anthers yellow to tan, to 2mm long, connate around the style. Style bifurcate, exserted slightly beyond the anthers, glabrous, translucent. Stigmas yellow, slightly compressed, 1.5mm long, pubescent in apical 1/2. Achenes and pappus as in ray flowers. Receptacle flat, naked.
Flowering - August - October.
Habitat - Rocky and sandy open woods, thickets, glades.
Origin - Native to U.S.
Other info. - This attractive species can be found in the southern 1/2 of Missouri. The plant is fairly easy to ID (for an Aster) because of its big blue flower heads and hairy stems, which have long internodes. Aster novae-angliae L. is similar but has much shorter internodes and flower heads with many more ray flowers. A. oblongifolius Nutt. is very similar also but has many more cauline leaves below the branching of the inflorescence and more spreading hairs on its stems.
Stems - To 1m tall, herbaceous, branching in apical 1/2, moderately antrorse pubescent (densely in inflorescence), erect, from rhizomes and thickened roots, terete.
Leaves - Alternate, sessile, clasping, auriculate. Internodes below the inflorescence 2-3cm long. Blades entire, acute, oblong, to +6cm long, 1.5-2cm broad, scabrous, sparse pubescent above, more so below. Leaves greatly reduced in inflorescence to bracts. Lower cauline leaves typically dried by anthesis.
Inflorescence - Terminal flower heads in a loose paniculate arrangement. Peduncles long, with greatly reduced leaves, striate.
Involucre - Cylindric, to 5-6mm long, 4-5mm in diameter. Phyllaries imbricate, glandular pubescent and puberulent, just the apices spreading and often reddish-purple, glabrous internally in the basal 2/3, with scarious margins and a green midrib, acuminate, 4-5mm long, 1-1.2mm broad, linear-oblong.
Ray flowers - Flowers 15-20 per head, fertile, pistillate. Ligules blue, to +1cm long, 2-2.5mm broad, minutely 3-lobed at apex (use a lens to see), glabrous. Corolla tube pubescent, whitish, 4-5mm long. Style exserted from beyond the corolla tube, white, glabrous. Stigmas yellow, 1.1mm long. Achenes quadrangular, white, densely retrorse ciliate, 1mm long in flower. Pappus of barbellate capillary bristles to 5mm long. Bristles tan to cinnamon.
Disk flowers - Disk 5-9mm broad. Corolla pale yellow, to 6mm long, glabrous, 5-lobed. Lobes acute, mostly erect, .8mm long, yellow. Stamens 5, slightly exserted, adnate at the base of the corolla tube. Filaments thin, glabrous, translucent. Anthers yellow to tan, to 2mm long, connate around the style. Style bifurcate, exserted slightly beyond the anthers, glabrous, translucent. Stigmas yellow, slightly compressed, 1.5mm long, pubescent in apical 1/2. Achenes and pappus as in ray flowers. Receptacle flat, naked.
Flowering - August - October.
Habitat - Rocky and sandy open woods, thickets, glades.
Origin - Native to U.S.
Other info. - This attractive species can be found in the southern 1/2 of Missouri. The plant is fairly easy to ID (for an Aster) because of its big blue flower heads and hairy stems, which have long internodes. Aster novae-angliae L. is similar but has much shorter internodes and flower heads with many more ray flowers. A. oblongifolius Nutt. is very similar also but has many more cauline leaves below the branching of the inflorescence and more spreading hairs on its stems.
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Dummer. ゛☀
2017年07月28日
Family - Asteraceae
Stems - To 1m tall, glabrous to hispidulous, single from the base, typically simple in the lower 1/2, terete, erect, herbaceous.
Leaves - Alternate. Basal leaves long petiolate, the petiole to +15cm long. Blades of basal leaves cordate to truncate or abruptly narrowed at base, very scabrous above and below, to 10cm long, 7cm wide. Middle and upper cauline leaves greatly reduced as compared to basal leaves, 2-10mm broad, sessile, appearing as linear bracts near inflorescence.
Inflorescence - Loosely paniculate, open, many flowered(+75) but the flowers opening at different times.
Involucre - 4.5-7mm tall (long), cylindric. Phyllaries imbricate, lanceolate, appressed, mostly whitish with distinct rhombic green tips, margins minutely ciliolate.
Ray flowers - Ligules blue, to 9mm long, typically +/- 15 per flower head.
Disk flowers - Disk 4-5mm broad. Corollas yellow, small, 15-30 per head. Achenes glabrous, +/-1mm long. Pappus of capillary bristles, +2.5mm long.
Flowering - September - October.
Habitat - Open woods, prairies, pastures, glades, roadsides.
Origin - Native to U.S.
Other info. - This little but showy species can be found scattered throughout much of Missouri. Steyermark wrote, however, that it is found in less than half the counties in the state.
The plant is easy to identify because of its leaves, which are very scabrous - almost like sandpaper. The small blue flowers and green diamond-tipped phyllaries help also. Plants with glabrous stems can be growing right next to those with hispidulous stems so stem pubescence is NOT a good character to use for identification.
Stems - To 1m tall, glabrous to hispidulous, single from the base, typically simple in the lower 1/2, terete, erect, herbaceous.
Leaves - Alternate. Basal leaves long petiolate, the petiole to +15cm long. Blades of basal leaves cordate to truncate or abruptly narrowed at base, very scabrous above and below, to 10cm long, 7cm wide. Middle and upper cauline leaves greatly reduced as compared to basal leaves, 2-10mm broad, sessile, appearing as linear bracts near inflorescence.
Inflorescence - Loosely paniculate, open, many flowered(+75) but the flowers opening at different times.
Involucre - 4.5-7mm tall (long), cylindric. Phyllaries imbricate, lanceolate, appressed, mostly whitish with distinct rhombic green tips, margins minutely ciliolate.
Ray flowers - Ligules blue, to 9mm long, typically +/- 15 per flower head.
Disk flowers - Disk 4-5mm broad. Corollas yellow, small, 15-30 per head. Achenes glabrous, +/-1mm long. Pappus of capillary bristles, +2.5mm long.
Flowering - September - October.
Habitat - Open woods, prairies, pastures, glades, roadsides.
Origin - Native to U.S.
Other info. - This little but showy species can be found scattered throughout much of Missouri. Steyermark wrote, however, that it is found in less than half the counties in the state.
The plant is easy to identify because of its leaves, which are very scabrous - almost like sandpaper. The small blue flowers and green diamond-tipped phyllaries help also. Plants with glabrous stems can be growing right next to those with hispidulous stems so stem pubescence is NOT a good character to use for identification.
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Miss Chen
2017年07月27日
1.Para prevenir problemas sanitarios mantener las plantas fuertes y bien cuidadas en cuanto a riego, fertilización, clima adecuado, etc., resistirán mucho mejor los ataques de insectos y hongos.
2.Si vuelves a poner la misma especie en un sitio con problemas de plagas o enfermedades, es probable que de nuevo se infecte, porque los parásitos se conservan; planta otra especie.
3.Pulveriza las plantas que en años anteriores tuvieron problemas con hongos; ya que es probable que reaparezcan.
4.Es mucho más fácil combatir una plaga de insectos u hongo en la fase inicial que esperar a que se extienda.
5.El exceso de humedad facilita la aparición de hongos.
6.Trata con fungicida las manchas amarillas o pardas que aparezcan en el césped si se sospecha de hongos. Así no se extenderán.
7.Aplica un fungicida de amplio aspectro para prevenir hongos como Botritis, Oidio, Roya y Mildiu.
8.La Negrilla o Fumagina aparece donde hay Pulgones, Cochinillas o Mosca blanca, ya que se asientan sobre la melaza que éstos excretan. Elimina las plagas y no habrá Negrilla.
9.Botritis (Botrytis cinerea) es un moho de color gris que ataca todas las partes de la planta: tallos, hojas, flores y frutos. Se previene con fungicidas y evitando las heridas, que es por donde penetra.
10.Fitóftora (Phytophtora spp.) es un hongo que empieza atacando el sistema radicular y sigue por el cuello de la planta. Se propaga con rapidez y acaba con la planta. Aparece cuando el suelo está muy húmedo. Destruye setos de Coníferas, árboles, arbustos, naranjos...
11.No aproveches los esquejes de plantas enfermas porque también estarán infectados.
12.Los Pulgones es posible combatirlos pulverizando con agua jabonosa. Llena de agua un pulverizador de litro o litro y medio y añade una cucharadita de lavavajillas, jabón natural o jabón de potasa. Rocía las plantas.
13.Captura a mano escarabajos, orugas, gusanos...
14.Captura babosas y caracoles con trampas de cerveza, a mano al atardecer o con cebos especiales.
15.Hojas arrugadas en naranjo, mandarino o limonero se debe a alguna de estas plagas: Minador de los cítricos, Pulgones o Mosca blanca. Clorosis férrica
16.El amarilleo de hojas puede obedecer a la falta de hierro en el suelo o a riego permanente con aguas calcáreas (duras).
17.El agua del grifo es a menudo muy calcárea, lo que amarillea las hojas en ciertas especies sensibles a este problema, llamadas acidófilas: Azalea, Rododendro, Glicina, Camelia, Fucsia, Hortensia o Brezo.
18.Trata estas acidófilas con Sulfato de hierro (25 grs. o 1 cucharada por planta grande o 1 cucharadita por cada macetero mediano) o bien con quelatos de hierro (1/2 cucharadita por planta). Luego riega.
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Dummer. ゛☀
2017年07月27日
Family - Polemoniaceae
Stems - Multiple from base, erect or ascending to decumbent, often rooting at lower nodes, branching, villous, herbaceous, terete.
Leaves - Opposite, linear to linear-lanceolate, entire, sessile, acute, mucronate, -3cm long, 2-3mm broad, pubescent on new growth but becoming glabrous, with single midrib.
Inflorescence - Terminal and axillary single flowers. Pedicels villous, 2-5mm long in flower, elongating in fruit to +1.5cm, erect.
Flowers - Corolla salverform, 5-lobed, typically some shade of blue to white. Corolla tube 1cm long, glabrous. Lobes +1cm long, deeply notched at apex, glabrous, with darker spots of color at base. Stamens 5, adnate at different levels in corolla tube, included. Anthers 2mm long, orange. Ovary ovoid, superior, green, glabrous, 1.2mm long, 3-locular. Placentation axile. Style greenish-white, 5.5mm long, glabrous. Stigmas 3. Calyx villous, 5-lobed (toothed), 8mm long. Lobes joined in lower 1/2 by scarious tissue, attenuate.
Flowering - March - May.
Habitat - Rocky and dry open woods, slopes, ravines, rocky outcroppings. Also widely cultivated.
Origin - Native to U.S.
Other info. - This striking plant can be found growing wild in just a handful of Missouri counties. Wild plants are typically scraggly and thin because of the tough growing conditions the plant accepts. Cultivated plants are much more full-bodied and colorful and can form large mats when left alone. The pictures below are of cultivated specimens
Stems - Multiple from base, erect or ascending to decumbent, often rooting at lower nodes, branching, villous, herbaceous, terete.
Leaves - Opposite, linear to linear-lanceolate, entire, sessile, acute, mucronate, -3cm long, 2-3mm broad, pubescent on new growth but becoming glabrous, with single midrib.
Inflorescence - Terminal and axillary single flowers. Pedicels villous, 2-5mm long in flower, elongating in fruit to +1.5cm, erect.
Flowers - Corolla salverform, 5-lobed, typically some shade of blue to white. Corolla tube 1cm long, glabrous. Lobes +1cm long, deeply notched at apex, glabrous, with darker spots of color at base. Stamens 5, adnate at different levels in corolla tube, included. Anthers 2mm long, orange. Ovary ovoid, superior, green, glabrous, 1.2mm long, 3-locular. Placentation axile. Style greenish-white, 5.5mm long, glabrous. Stigmas 3. Calyx villous, 5-lobed (toothed), 8mm long. Lobes joined in lower 1/2 by scarious tissue, attenuate.
Flowering - March - May.
Habitat - Rocky and dry open woods, slopes, ravines, rocky outcroppings. Also widely cultivated.
Origin - Native to U.S.
Other info. - This striking plant can be found growing wild in just a handful of Missouri counties. Wild plants are typically scraggly and thin because of the tough growing conditions the plant accepts. Cultivated plants are much more full-bodied and colorful and can form large mats when left alone. The pictures below are of cultivated specimens
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Dummer. ゛☀
2017年07月26日
Family - Scrophulariaceae
Stems - To 20cm tall (typically shorter), erect, herbaceous, branching, terete, densely glandular pubescent, from a taproot.
Leaves - Opposite, decussate, pinnatifid to bipinnatifid in the apical 1/2, glandular pubescent, to 1.8cm long, 1.3cm broad. Ultimate leaf divisions linear to oblong or oblanceolate, entire.
Inflorescence - Typically single flowers from upper leaf axils. Pedicels to 3mm in flower, slightly longer in fruit, densely glandular pubescent.
Flowers - Corolla bilabiate, pale blue to lilac, to +4mm long, glabrous externally, sparse pilose internally. Upper lip single-lobed. The lobe with a notched at the apex, to -2mm broad, -1mm long. Lower lip 3-lobed. The lobes mostly equal, to 1.2mm long. Corolla tube to 2.5-3mm long, expanded and white at the base. Stamens 4, didynamous, adnate near middle of corolla tube, included. Filaments to 1.3mm long, white, glabrous. Anthers pale yellow to white .1-.2mm broad. Ovary superior, green, glabrous, +/-1mm long in flower, ovoid, 2-locular. Ovules many. Placentation axile. Style 1.1mm long, glabrous, green. Stigma 2-lobed. Sepals 5, barely united at the base for -1mm, to +2mm long in flower, +4mm in fruit, .3mm broad, linear-attenuate, slightly spreading at the tips or erect, glandular pubescent. Calyx accrescent. Capsule green, glabrous, 2-valved.
Flowering - May - October.
Habitat - Gravel bars of streams, moist ground of fields and prairies, mud flats, low woods, roadsides.
Origin - Native to U.S.
Other info. - This is one of those plants that most people would see as a weed in need of a good shower of "Round-Up". Closer inspection, however, reveals a neat little plant with very nice yet small flowers. The plant can be found throughout most of Missouri except may of the northern counties.
A synonym is Leucospora multifida (Michx.) Nutt.
Stems - To 20cm tall (typically shorter), erect, herbaceous, branching, terete, densely glandular pubescent, from a taproot.
Leaves - Opposite, decussate, pinnatifid to bipinnatifid in the apical 1/2, glandular pubescent, to 1.8cm long, 1.3cm broad. Ultimate leaf divisions linear to oblong or oblanceolate, entire.
Inflorescence - Typically single flowers from upper leaf axils. Pedicels to 3mm in flower, slightly longer in fruit, densely glandular pubescent.
Flowers - Corolla bilabiate, pale blue to lilac, to +4mm long, glabrous externally, sparse pilose internally. Upper lip single-lobed. The lobe with a notched at the apex, to -2mm broad, -1mm long. Lower lip 3-lobed. The lobes mostly equal, to 1.2mm long. Corolla tube to 2.5-3mm long, expanded and white at the base. Stamens 4, didynamous, adnate near middle of corolla tube, included. Filaments to 1.3mm long, white, glabrous. Anthers pale yellow to white .1-.2mm broad. Ovary superior, green, glabrous, +/-1mm long in flower, ovoid, 2-locular. Ovules many. Placentation axile. Style 1.1mm long, glabrous, green. Stigma 2-lobed. Sepals 5, barely united at the base for -1mm, to +2mm long in flower, +4mm in fruit, .3mm broad, linear-attenuate, slightly spreading at the tips or erect, glandular pubescent. Calyx accrescent. Capsule green, glabrous, 2-valved.
Flowering - May - October.
Habitat - Gravel bars of streams, moist ground of fields and prairies, mud flats, low woods, roadsides.
Origin - Native to U.S.
Other info. - This is one of those plants that most people would see as a weed in need of a good shower of "Round-Up". Closer inspection, however, reveals a neat little plant with very nice yet small flowers. The plant can be found throughout most of Missouri except may of the northern counties.
A synonym is Leucospora multifida (Michx.) Nutt.
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