文章
Dummer. ゛☀
2017年08月03日
Family - Asteraceae
Stems - To +1.2m tall, from thick rhizomes, carinate, tomentose, branching above, herbaceous, erect.
Leaves - Alternate, petiolate, 3-lobed (simple in upper-most portion of plant), subtomentose below, scabrous above. Lateral lobes smaller than terminal lobe, serrate, acute to acuminate. Terminal lobe serrate, lance-ovate, acuminate. Leaves thick and firm. Petioles subtomentose.
Inflorescence - Loose cymose arrangement of terminal flower heads. Peduncles tomentose. Each division of inflorescence subtended by foliaceous bract.
Involucre - Phyllaries tomentose, spreading, linear-subulate, in several series, to +/-1.2cm long, -3mm broad.
Ray flowers - Sterile. Ligule yellow, to 3.5cm long, 6-7mm broad, pubescent below, glabrous above. Achenes 3-angled, 1.2mm long. Pappus absent or a minute crown.
Disk flowers - Disk to 1.6cm in diameter. Corolla tube 2mm long, 5-lobed, glabrous, purplish-brown. Lobes acute, recurved to spreading. Stamens 5, adnate at base of corolla tube. Anthers connate around style, purplish-brown, 1.3mm long, slightly exserted from corolla. Style bifurcate, deep purple. Achene 2.2mm long (in flower), white, glabrous, 4-angled. Pappus absent or a minute crown. Receptacle conic. Chaff to 5mm long, purplish, pubescent at apex.
Flowering - July - October.
Habitat - Prairies, low meadows, open slopes, streambanks, roadsides.
Origin - Native to U.S.
Other info. - This is a common plant throughout most of Missouri.The flowers are easily recognized as are the thick, rough, 3-lobed leaves.
Two forms of R. subtomentosa exist in Missouri. The form pictured above is form subtomentosa, which has purplish-brown disk flowers. Form craigii (Sherff) Fern. has yellow disk flowers and is rare.
This is NOT the plant typically called "Black-eyed Susan", that plant is the similar R. hirta L.
Stems - To +1.2m tall, from thick rhizomes, carinate, tomentose, branching above, herbaceous, erect.
Leaves - Alternate, petiolate, 3-lobed (simple in upper-most portion of plant), subtomentose below, scabrous above. Lateral lobes smaller than terminal lobe, serrate, acute to acuminate. Terminal lobe serrate, lance-ovate, acuminate. Leaves thick and firm. Petioles subtomentose.
Inflorescence - Loose cymose arrangement of terminal flower heads. Peduncles tomentose. Each division of inflorescence subtended by foliaceous bract.
Involucre - Phyllaries tomentose, spreading, linear-subulate, in several series, to +/-1.2cm long, -3mm broad.
Ray flowers - Sterile. Ligule yellow, to 3.5cm long, 6-7mm broad, pubescent below, glabrous above. Achenes 3-angled, 1.2mm long. Pappus absent or a minute crown.
Disk flowers - Disk to 1.6cm in diameter. Corolla tube 2mm long, 5-lobed, glabrous, purplish-brown. Lobes acute, recurved to spreading. Stamens 5, adnate at base of corolla tube. Anthers connate around style, purplish-brown, 1.3mm long, slightly exserted from corolla. Style bifurcate, deep purple. Achene 2.2mm long (in flower), white, glabrous, 4-angled. Pappus absent or a minute crown. Receptacle conic. Chaff to 5mm long, purplish, pubescent at apex.
Flowering - July - October.
Habitat - Prairies, low meadows, open slopes, streambanks, roadsides.
Origin - Native to U.S.
Other info. - This is a common plant throughout most of Missouri.The flowers are easily recognized as are the thick, rough, 3-lobed leaves.
Two forms of R. subtomentosa exist in Missouri. The form pictured above is form subtomentosa, which has purplish-brown disk flowers. Form craigii (Sherff) Fern. has yellow disk flowers and is rare.
This is NOT the plant typically called "Black-eyed Susan", that plant is the similar R. hirta L.
0
0
文章
Dummer. ゛☀
2017年08月02日
Family - Plantaginaceae
Stems - Plant acaulescent, from a taproot, herbaceous. Flowering scapes to +20cm tall, erect, solid, multiple from the base, simple, hispid.
Leaves - In a basal rosette, spatulate to oblanceolate or obovate, rounded to subacute at the apex, tapering to the base, to +/-15cm long, +/-4cm broad, typically hispidulous above and below but sometimes sparse pubescent. Lateral veins arising from the base of the blade, parallel to midrib. Petioles typically purplish at the base. Margins entire to shallow toothed.
Inflorescence - Terminal scapose spike to 5cm long, 8mm in diameter. Each flower subtended by a single bract. Bracts sessile, scarious-margined, hispid abaxially, glabrous adaxially, to 2mm long.
Flowers - Corolla 4-lobed. Corolla tube to 2.1mm long, scarious, glabrous. Corolla lobes to 1.5mm long, brownish-scarious, spreading in flower, erect and convergent in fruit. Stamens 4, alternating with the corolla lobes, erect to spreading, well exserted. Filaments translucent, glabrous, to 3-5mm long. Anthers yellow-purple, 1mm long. Ovary superior, green, glabrous, globose, .7mm in diameter. Style 1, pubescent, 4-5mm long, exserted. Sepals 4, ovate-elliptic, scarious with a green midvein, +2mm long, 1.7mm broad, hispid abaxially, with ciliolate margins.
Flowering - April - June.
Habitat - Fallow fields, pastures, glades, waste ground, roadsides, railroads.
Origin - Native to the U.S.
Other info. - This variable species can be found throughout Missouri and is very common. The plant can be difficult to identify in the field sometimes because it is very variable in leaf size, shape, and toothing, pubescence, and scape size.
Stems - Plant acaulescent, from a taproot, herbaceous. Flowering scapes to +20cm tall, erect, solid, multiple from the base, simple, hispid.
Leaves - In a basal rosette, spatulate to oblanceolate or obovate, rounded to subacute at the apex, tapering to the base, to +/-15cm long, +/-4cm broad, typically hispidulous above and below but sometimes sparse pubescent. Lateral veins arising from the base of the blade, parallel to midrib. Petioles typically purplish at the base. Margins entire to shallow toothed.
Inflorescence - Terminal scapose spike to 5cm long, 8mm in diameter. Each flower subtended by a single bract. Bracts sessile, scarious-margined, hispid abaxially, glabrous adaxially, to 2mm long.
Flowers - Corolla 4-lobed. Corolla tube to 2.1mm long, scarious, glabrous. Corolla lobes to 1.5mm long, brownish-scarious, spreading in flower, erect and convergent in fruit. Stamens 4, alternating with the corolla lobes, erect to spreading, well exserted. Filaments translucent, glabrous, to 3-5mm long. Anthers yellow-purple, 1mm long. Ovary superior, green, glabrous, globose, .7mm in diameter. Style 1, pubescent, 4-5mm long, exserted. Sepals 4, ovate-elliptic, scarious with a green midvein, +2mm long, 1.7mm broad, hispid abaxially, with ciliolate margins.
Flowering - April - June.
Habitat - Fallow fields, pastures, glades, waste ground, roadsides, railroads.
Origin - Native to the U.S.
Other info. - This variable species can be found throughout Missouri and is very common. The plant can be difficult to identify in the field sometimes because it is very variable in leaf size, shape, and toothing, pubescence, and scape size.
0
0
文章
Dummer. ゛☀
2017年08月02日
Family - Amaranthaceae
Stems - To 60cm tall, from taproot, branching at base, ascending or slightly procumbent, herbaceous, erect, arachnoid pubescent.
Leaves - Opposite, sessile, mostly at base of plant, linear-oblong, entire, arachnoid pubescent below, sericeous above (the hairs swollen basally), acute, to +7cm long, -1cm broad.
Inflorescence - Terminal and lateral spikes. Lateral spikes sessile. Bracts subtending flowers densely lanate, pinkish-tinged at apex.
Flowers - Apetalous. Calyx tubular, 5-lobed, pinkish-tinged, densely lanate, 2.2mm long(in flower). Stamens 5, included. Filaments connate and forming a tube. Anthers yellow, .2-.3mm long. Ovary and style compressed. Ovary ovoid-rotund. Style scarious-green, .4mm long. Stigma capitate, globose. Fruiting calyx to +3mm long, with 2 rows of spines. Urticle with a single spine.
Flowering - May - September.
Habitat - Glades, sandy open ground, streambanks, gravel bars, railroads.
Origin - Native to U.S.
Other info. - Most plants from the Amaranthaceae have flowers which are very difficult to decipher without a good scope or lens. The flower parts are very small and typically indistinct. F. gracilis is no exception, but it is, however, easy to ID in the field because of its basally branching habit and wooly-arachnoid stems and flowers. Another species, F. floridana (Nutt.) Moq. is found in Missouri and the two species hybridize. F. floridana has thicker stems, broader leaves, and doesn't typically branch at the base. Both species can be found in many scattered counties throughout Missouri.
F. gracilis is found in quantity on the gravel bars in the Ozarks. The spiny fruits can be the cause of much discomfort for sandal-wearers in the area.
Stems - To 60cm tall, from taproot, branching at base, ascending or slightly procumbent, herbaceous, erect, arachnoid pubescent.
Leaves - Opposite, sessile, mostly at base of plant, linear-oblong, entire, arachnoid pubescent below, sericeous above (the hairs swollen basally), acute, to +7cm long, -1cm broad.
Inflorescence - Terminal and lateral spikes. Lateral spikes sessile. Bracts subtending flowers densely lanate, pinkish-tinged at apex.
Flowers - Apetalous. Calyx tubular, 5-lobed, pinkish-tinged, densely lanate, 2.2mm long(in flower). Stamens 5, included. Filaments connate and forming a tube. Anthers yellow, .2-.3mm long. Ovary and style compressed. Ovary ovoid-rotund. Style scarious-green, .4mm long. Stigma capitate, globose. Fruiting calyx to +3mm long, with 2 rows of spines. Urticle with a single spine.
Flowering - May - September.
Habitat - Glades, sandy open ground, streambanks, gravel bars, railroads.
Origin - Native to U.S.
Other info. - Most plants from the Amaranthaceae have flowers which are very difficult to decipher without a good scope or lens. The flower parts are very small and typically indistinct. F. gracilis is no exception, but it is, however, easy to ID in the field because of its basally branching habit and wooly-arachnoid stems and flowers. Another species, F. floridana (Nutt.) Moq. is found in Missouri and the two species hybridize. F. floridana has thicker stems, broader leaves, and doesn't typically branch at the base. Both species can be found in many scattered counties throughout Missouri.
F. gracilis is found in quantity on the gravel bars in the Ozarks. The spiny fruits can be the cause of much discomfort for sandal-wearers in the area.
0
0
文章
Dummer. ゛☀
2017年08月02日
Flowering - April - June.
Habitat - North and East-facing slopes of ravines, mesic, upland woods.
Origin - Native to U.S., Europe, and Asia.
Other info. - This showy and striking species can be found throughout Missouri. The plant is just one of a larger complex of plants which occur in Europe, Asia, and North America. At present, two varieties are recognized in Missouri. Variety parviflorum (Salisb.) Fernald has a corolla lip 2-3cm long, and 4-6 leaves per flowering stem. Variety pubescens (Willd.) Correll has a corolla lip 3-6cm long and 3-4 leaves per flowering stem. Both varieties are commonly scattered throughout the state. A rare white form of var. parviflorum has been collected in Missouri in a couple of southern counties.
Due to its beauty, the plant has been dug for gardening use and the species has declined in the wild. The roots are also collected for medicinal use. The plant was used traditionally to remedy headaches, hysteria, insomnia, depression, and menstrual irregularities.
It would be a shame to see this species decline more in the wild because of harvesting. Plants will grow from seed and pods can be easily collected in the late summer.
Habitat - North and East-facing slopes of ravines, mesic, upland woods.
Origin - Native to U.S., Europe, and Asia.
Other info. - This showy and striking species can be found throughout Missouri. The plant is just one of a larger complex of plants which occur in Europe, Asia, and North America. At present, two varieties are recognized in Missouri. Variety parviflorum (Salisb.) Fernald has a corolla lip 2-3cm long, and 4-6 leaves per flowering stem. Variety pubescens (Willd.) Correll has a corolla lip 3-6cm long and 3-4 leaves per flowering stem. Both varieties are commonly scattered throughout the state. A rare white form of var. parviflorum has been collected in Missouri in a couple of southern counties.
Due to its beauty, the plant has been dug for gardening use and the species has declined in the wild. The roots are also collected for medicinal use. The plant was used traditionally to remedy headaches, hysteria, insomnia, depression, and menstrual irregularities.
It would be a shame to see this species decline more in the wild because of harvesting. Plants will grow from seed and pods can be easily collected in the late summer.
0
0
文章
Dummer. ゛☀
2017年08月02日
Family - Aristolochiaceae
Stems - Subterrestrial horizontal rhizomes.
Leaves - Paired, arising from base of plant (rhizome), petiolate. Petiole to +15cm long, densely lanate with multicellular hairs. Blades cordate to reniform, to 15cm broad and long, entire, sericeous above with hairs on veins and near margins, densely pubescent below.
Inflorescence - Single flower from between leaf petioles. Peduncle to 3cm long, lanate, reddish-purple.
Flowers - Apetalous. Sepals 3, connate for 2/3 of length( about 1cm) into a campanulate tube, free portions to 2cm long, +/-1cm broad at base, abruptly acute to acuminate or apiculate at apex, spreading to reflexed, brownish-red in upper half, whitish below (internally), pubescent to densely lanate externally, persistent in fruit. Stamens 12. Anthers connivent with the styles. Styles 6, deep brownish-red. Ovary inferior, 6-locular. Placentation axile. Capsule many seeded.
Flowering - April - May.
Habitat - Wooded slopes, valleys, ravines, base of bluffs.
Origin - Native to U.S.
Other info. - This little plant is probably the easiest to identify in the field. The cordate leaves and distinguishing flower make it simple to recognize.
The rhizomes of the plant were eaten heavily by natives and were believed to have medicinal properties.
The plant has been studied in cancer research.
Stems - Subterrestrial horizontal rhizomes.
Leaves - Paired, arising from base of plant (rhizome), petiolate. Petiole to +15cm long, densely lanate with multicellular hairs. Blades cordate to reniform, to 15cm broad and long, entire, sericeous above with hairs on veins and near margins, densely pubescent below.
Inflorescence - Single flower from between leaf petioles. Peduncle to 3cm long, lanate, reddish-purple.
Flowers - Apetalous. Sepals 3, connate for 2/3 of length( about 1cm) into a campanulate tube, free portions to 2cm long, +/-1cm broad at base, abruptly acute to acuminate or apiculate at apex, spreading to reflexed, brownish-red in upper half, whitish below (internally), pubescent to densely lanate externally, persistent in fruit. Stamens 12. Anthers connivent with the styles. Styles 6, deep brownish-red. Ovary inferior, 6-locular. Placentation axile. Capsule many seeded.
Flowering - April - May.
Habitat - Wooded slopes, valleys, ravines, base of bluffs.
Origin - Native to U.S.
Other info. - This little plant is probably the easiest to identify in the field. The cordate leaves and distinguishing flower make it simple to recognize.
The rhizomes of the plant were eaten heavily by natives and were believed to have medicinal properties.
The plant has been studied in cancer research.
0
0
求助
Lucky Coyote
2017年08月01日
My house plant put off this tight spiral, any ideas on what the plant is or why it's doing this?
3
0
Abby Gill：I'm not entirely sure, but it may be a new stem and leaf. I'd watch it and see if it starts unfolding.
文章
Dummer. ゛☀
2017年07月31日
Family - Asteraceae
Stems - Flowering scapes to +/-35cm long (tall), terete, hollow, 2-3mm in diameter, striate-nerved, glabrous except at the apex below the involucre, simple, typically 1-2 per plant but can be many more. Hairs of the scapes below the involucre glandular (the glands at the tips of the hairs are purple). Roots of the plant long and fibrous, with large nodular growths. All parts of the plant with milky sap.
Leaves - In a basal rosette, entire to coarsely (2-6) dentate, acute, linear-oblong, bluish-green, often glaucous, glabrous except at the very base (adaxially), to +/-15cm long, +/-1.5cm broad.
Inflorescence - Single flowerhead terminating the flowering scape.
Involucre - Involucre to 1.5cm long, uniseriate. Phyllaries distinct, linear, -1.5cm long, 2mm broad, bluish-green, glabrous.
Ray flowers - Fertile. Corolla tube to 6mm long, whitish, glabrous to sparse pillose. Ligule yellow-orange, to +1.5cm long, +2.5mm broad, sparse pilose externally, glabrous internally, 5-toothed at the apex. Stamens adnate at the apex of the corolla tube. Filaments short, to 1mm long, glabrous. Anthers connate around the style, +/-5mm long, yellow-orange. Style exserted beyond the anthers, antrorsely barbellate, typically undivided. Pappus in two series (biseriate). Outer series of +/-10 short lanceolate scales to -1mm long. Inner series of +/-20 capillary bristles to -1cm long. The bristles barbellate. Achenes with +/-15 ribs, mostly glabrous except on the angles where they are antrorse strigose, +/-3mm long at maturity, brownish-black at maturity. Receptacle flat, naked.
Disk flowers - Absent.
Flowering - April - June.
Habitat - Prairies, glades, bluffs, sandy fields, open woods, roadsides.
Origin - Native to U.S.
Other info. - This handsome species can be found in the Ozark region of Missouri. It can be identified by its large yellow-orange flowerheads, basal leaves, milky sap, and large root nodules. Another species, K. virginica is similar but lacks the root nodules and has much smaller flowerheads. Both species can grow side by side.
Stems - Flowering scapes to +/-35cm long (tall), terete, hollow, 2-3mm in diameter, striate-nerved, glabrous except at the apex below the involucre, simple, typically 1-2 per plant but can be many more. Hairs of the scapes below the involucre glandular (the glands at the tips of the hairs are purple). Roots of the plant long and fibrous, with large nodular growths. All parts of the plant with milky sap.
Leaves - In a basal rosette, entire to coarsely (2-6) dentate, acute, linear-oblong, bluish-green, often glaucous, glabrous except at the very base (adaxially), to +/-15cm long, +/-1.5cm broad.
Inflorescence - Single flowerhead terminating the flowering scape.
Involucre - Involucre to 1.5cm long, uniseriate. Phyllaries distinct, linear, -1.5cm long, 2mm broad, bluish-green, glabrous.
Ray flowers - Fertile. Corolla tube to 6mm long, whitish, glabrous to sparse pillose. Ligule yellow-orange, to +1.5cm long, +2.5mm broad, sparse pilose externally, glabrous internally, 5-toothed at the apex. Stamens adnate at the apex of the corolla tube. Filaments short, to 1mm long, glabrous. Anthers connate around the style, +/-5mm long, yellow-orange. Style exserted beyond the anthers, antrorsely barbellate, typically undivided. Pappus in two series (biseriate). Outer series of +/-10 short lanceolate scales to -1mm long. Inner series of +/-20 capillary bristles to -1cm long. The bristles barbellate. Achenes with +/-15 ribs, mostly glabrous except on the angles where they are antrorse strigose, +/-3mm long at maturity, brownish-black at maturity. Receptacle flat, naked.
Disk flowers - Absent.
Flowering - April - June.
Habitat - Prairies, glades, bluffs, sandy fields, open woods, roadsides.
Origin - Native to U.S.
Other info. - This handsome species can be found in the Ozark region of Missouri. It can be identified by its large yellow-orange flowerheads, basal leaves, milky sap, and large root nodules. Another species, K. virginica is similar but lacks the root nodules and has much smaller flowerheads. Both species can grow side by side.
0
0
文章
Dummer. ゛☀
2017年07月31日
Family - Liliaceae
Stems - Plants acaulescent, from a scaly bulb.
Leaves - Basal, petiolate, typically two per fertile plant, (one leaf on sterile plants). Blades glabrous, entire, fleshy to subsucculent, acute to acuminate, mottled with silver above, green below, linear-elliptic to ovate-elliptic, to +20cm long, +5cm broad.
Inflorescence - Single flower terminating peduncle (scape), typically only one per plant. Flower nodding. Peduncle glabrous, to +15cm tall.
Flowers - Tepals 6, yellow to brownish, glabrous, entire, 4.5-5cm long, 7-8mm broad, recurved in flower, glabrous. Stamens 6, adnate to base of tepals. Filaments to 1.7cm long, 1.5mm broad, yellow, glabrous. Anthers 1.3cm long, purple. Ovary 1.3cm long, 3-angled, 3-locular, green, glabrous, superior. Placentation axile. Style 6mm long, expanded at apex. Stigma hollow at apex, lobed, yellow.
Flowering - March - May.
Habitat - Low rich woods, along streams, wooded slopes.
Origin - Native to U.S.
Other info. - This striking species is found mainly in the lower 1/3 of Missouri. The yellow flowers are easy to spot against the leaf litter of the woods. This species can be found in colonies of sterile, one-leaved plants along with a few fertile, two-leaved plants.
Traditionally the bulbs and leaves of this species were eaten, either raw or cooked. The plant was also used medicinally to heal ulcers and as a contraceptive. The plant is believed to be mildly emetic and antibiotic.
Stems - Plants acaulescent, from a scaly bulb.
Leaves - Basal, petiolate, typically two per fertile plant, (one leaf on sterile plants). Blades glabrous, entire, fleshy to subsucculent, acute to acuminate, mottled with silver above, green below, linear-elliptic to ovate-elliptic, to +20cm long, +5cm broad.
Inflorescence - Single flower terminating peduncle (scape), typically only one per plant. Flower nodding. Peduncle glabrous, to +15cm tall.
Flowers - Tepals 6, yellow to brownish, glabrous, entire, 4.5-5cm long, 7-8mm broad, recurved in flower, glabrous. Stamens 6, adnate to base of tepals. Filaments to 1.7cm long, 1.5mm broad, yellow, glabrous. Anthers 1.3cm long, purple. Ovary 1.3cm long, 3-angled, 3-locular, green, glabrous, superior. Placentation axile. Style 6mm long, expanded at apex. Stigma hollow at apex, lobed, yellow.
Flowering - March - May.
Habitat - Low rich woods, along streams, wooded slopes.
Origin - Native to U.S.
Other info. - This striking species is found mainly in the lower 1/3 of Missouri. The yellow flowers are easy to spot against the leaf litter of the woods. This species can be found in colonies of sterile, one-leaved plants along with a few fertile, two-leaved plants.
Traditionally the bulbs and leaves of this species were eaten, either raw or cooked. The plant was also used medicinally to heal ulcers and as a contraceptive. The plant is believed to be mildly emetic and antibiotic.
0
0
文章
Dummer. ゛☀
2017年07月30日
Family - Asteraceae
Stems - Plant acaulescent. Leaves and flowering stems from a big vertical taproot, with milky sap. Taproot woody.
Leaves - Leaves in a basal rosette, sessile, linear-attenuate, white at the partially sheathing base, mainly dark green with an adaxial white strip along the midrib, to 20cm long, 1.5cm broad at the base, typically folded. Margins entire, often sinuous, fringed with dense white hairs. Abaxial surface of the leaf with long whitish pubescence on the veins. Adaxial surface with lanate-tomentose pubescence on the midvein. The hairs of the plant multicellular.
Inflorescence - Single flower head terminating the flowering scape, typically one per plant. Scape (peduncle) to +/-15cm tall, lanate-tomentose, fistulose, carinate, appearing gray because of the pubescence.
Involucre - Phyllaries imbricate or overlapping but subequal in length, spreading at the apices, to -2cm long, 5-6mm broad, lanceolate, acuminate, light green with a brown mid-portion, glabrous. Inner phyllaries slightly smaller than the outer.
Ray flowers - Flower head to 5cm broad. Flowers many per head. Corolla tube whitish, densely antrorse pubescent externally, 1cm long. Ligule yellow adaxially, with a brown mid-stripe abaxially, 4-5-notched at the apex (the teeth to .75mm long), pubescent abaxially, glabrous adaxially, to 2cm long, 5mm broad. Stamens 5, adnate near the apex of the corolla tube. Filaments translucent-yellow, 2mm long, glabrous. Anthers orange, exserted, to +5mm long, connate around the style. Style yellow, antrorse pubescent, bifurcate at the apex for 1-2mm (the ends spreading). Achenes (in flower) green, glabrous, ribbed, 1.5mm long, cylindric. Pappus of white capillary bristles to +1cm long. The bristles antrorse barbellate. Receptacle flat.
Disk flowers - Absent.
Flowering - April - June.
Habitat - Glades and rocky prairies.
Origin - Native to U.S.
Other info. - This is one of the most uncommon plants in Missouri only being found in 4 counties thus far. It is locally abundant in some areas, however. The plant is easy to identify in the field because of its habitat, dandelion-like flower heads, and grayish hairy leaves and scapes. The big taproot helps the plant to survive in its harsh glade habitat.
Stems - Plant acaulescent. Leaves and flowering stems from a big vertical taproot, with milky sap. Taproot woody.
Leaves - Leaves in a basal rosette, sessile, linear-attenuate, white at the partially sheathing base, mainly dark green with an adaxial white strip along the midrib, to 20cm long, 1.5cm broad at the base, typically folded. Margins entire, often sinuous, fringed with dense white hairs. Abaxial surface of the leaf with long whitish pubescence on the veins. Adaxial surface with lanate-tomentose pubescence on the midvein. The hairs of the plant multicellular.
Inflorescence - Single flower head terminating the flowering scape, typically one per plant. Scape (peduncle) to +/-15cm tall, lanate-tomentose, fistulose, carinate, appearing gray because of the pubescence.
Involucre - Phyllaries imbricate or overlapping but subequal in length, spreading at the apices, to -2cm long, 5-6mm broad, lanceolate, acuminate, light green with a brown mid-portion, glabrous. Inner phyllaries slightly smaller than the outer.
Ray flowers - Flower head to 5cm broad. Flowers many per head. Corolla tube whitish, densely antrorse pubescent externally, 1cm long. Ligule yellow adaxially, with a brown mid-stripe abaxially, 4-5-notched at the apex (the teeth to .75mm long), pubescent abaxially, glabrous adaxially, to 2cm long, 5mm broad. Stamens 5, adnate near the apex of the corolla tube. Filaments translucent-yellow, 2mm long, glabrous. Anthers orange, exserted, to +5mm long, connate around the style. Style yellow, antrorse pubescent, bifurcate at the apex for 1-2mm (the ends spreading). Achenes (in flower) green, glabrous, ribbed, 1.5mm long, cylindric. Pappus of white capillary bristles to +1cm long. The bristles antrorse barbellate. Receptacle flat.
Disk flowers - Absent.
Flowering - April - June.
Habitat - Glades and rocky prairies.
Origin - Native to U.S.
Other info. - This is one of the most uncommon plants in Missouri only being found in 4 counties thus far. It is locally abundant in some areas, however. The plant is easy to identify in the field because of its habitat, dandelion-like flower heads, and grayish hairy leaves and scapes. The big taproot helps the plant to survive in its harsh glade habitat.
0
0
文章
Dummer. ゛☀
2017年07月30日
Family - Papaveraceae
Stems - From a woody caudex and thick roots, to +/-40cm tall, erect to ascending, herbaceous, fistulose, mostly green but purple at the base, glaucous, sparse to moderately pilose. Trichomes of the plant multicellular.
Leaves - Basal leaves long-petiolate, pinnatifid. Petioles to +/-16cm long, purplish near the base, green apically, with a shallow adaxial groove, sparse pilose. Blades pinnatifid. Divisions of the blade to +/-6cm long, +/-3cm broad, with rounded lobes, green and glabrous adaxially, heavily glaucous and sparse pilose abaxially. Rachis between the leaf divisions with pilose hairs.
Inflorescence - Terminal umbel of 1-many flowers. Umbels subtended by a pair of opposite leaves. The leaves reduced. Pedicels of the umbels subtended by a pair of subulate bracts. Bracts to +1cm long, +/-3mm broad, pilose, acute. Pedicels to +6cm long, sparse pilose, glaucous, terete, erect.
Flowers - Petaloid sepals 4, spreading, distinct, yellow-orange, broadly obovate, to +/-3cm long and broad, glabrous. Petals absent. Stamens many, erect, from below the pistil. Filaments yellow, to 7mm long, glabrous. Anthers yellow, +2mm long, +1mm broad, compressed. Ovary superior, 6-10mm long in flower, 3-4mm in diameter, narrowly ovoid, densely antrorse strigose, yellow-green, unilocular, with many ovules. Placentation parietal. Style yellow-green, glabrous, 2-3mm long. Stigma with a truncate apex, 2-4-lobed. Fruits pendant, to +2cm long, dehiscing by 4 valves. Seeds with a distinctive keel of white pubescence and otherwise shiny and dark brown to black.
Flowering - April - June.
Habitat - Rich soils of woodlands, base of bluffs, along streams, ravine bottoms.
Origin - Native to U.S.
Other info. - This striking plant can be found in the east-central portion of the state and in a few southwestern counties. It is simple to identify because of its paired leaves, brilliant yellow flowers, and bristly fruits. The species is also cultivated and grows well in many conditions.
Stems - From a woody caudex and thick roots, to +/-40cm tall, erect to ascending, herbaceous, fistulose, mostly green but purple at the base, glaucous, sparse to moderately pilose. Trichomes of the plant multicellular.
Leaves - Basal leaves long-petiolate, pinnatifid. Petioles to +/-16cm long, purplish near the base, green apically, with a shallow adaxial groove, sparse pilose. Blades pinnatifid. Divisions of the blade to +/-6cm long, +/-3cm broad, with rounded lobes, green and glabrous adaxially, heavily glaucous and sparse pilose abaxially. Rachis between the leaf divisions with pilose hairs.
Inflorescence - Terminal umbel of 1-many flowers. Umbels subtended by a pair of opposite leaves. The leaves reduced. Pedicels of the umbels subtended by a pair of subulate bracts. Bracts to +1cm long, +/-3mm broad, pilose, acute. Pedicels to +6cm long, sparse pilose, glaucous, terete, erect.
Flowers - Petaloid sepals 4, spreading, distinct, yellow-orange, broadly obovate, to +/-3cm long and broad, glabrous. Petals absent. Stamens many, erect, from below the pistil. Filaments yellow, to 7mm long, glabrous. Anthers yellow, +2mm long, +1mm broad, compressed. Ovary superior, 6-10mm long in flower, 3-4mm in diameter, narrowly ovoid, densely antrorse strigose, yellow-green, unilocular, with many ovules. Placentation parietal. Style yellow-green, glabrous, 2-3mm long. Stigma with a truncate apex, 2-4-lobed. Fruits pendant, to +2cm long, dehiscing by 4 valves. Seeds with a distinctive keel of white pubescence and otherwise shiny and dark brown to black.
Flowering - April - June.
Habitat - Rich soils of woodlands, base of bluffs, along streams, ravine bottoms.
Origin - Native to U.S.
Other info. - This striking plant can be found in the east-central portion of the state and in a few southwestern counties. It is simple to identify because of its paired leaves, brilliant yellow flowers, and bristly fruits. The species is also cultivated and grows well in many conditions.
0
0
求助
Potatoizaplant
2017年07月29日
I NEED HELP WITH MY KALANCHOE PLANT PLEASE! I bought this little guy a few months ago and it bloomed for my a few days after i bought it. It was fine until l 3 weeks later when i noticed the leaves shriveling up. It continued to lose it leaves and I pruned the flowers so it can focus all its energy on regaining its health. During the past few months I've repoted the plant, checking for root rot or any pest and i found nothing. Ive changed waterings, light, anything you can think off and it continues to loose it leaves. If you guys can help me save this plant, please comment any suggestions!
2
0
meriunkat：well all I know is that I water mine when the soil is dry which could be about every three days..and gradually exposed to sunlight
lizhufun：当金银花蕾生虫蛋如何处治
文章
Dummer. ゛☀
2017年07月29日
Family - Violaceae
Stems - A thick underground caudex.
Leaves - All arising from base of plant. Petioles to +15cm long, hirsute, with single longitudinal groove. Blades of lower leaves rounded at apex, reniform, or ovate, crenate to serrate, pubescent. Upper leaf blades cordate at base, gradually tapering to an acute or blunt apex, serrate, densely pubescent(hirsute), to +5cm broad, +5cm long.
Inflorescence - Single flowers on long peduncles from base of plant. Peduncles to +10cm long, hirsute, curved at apex, with pair of opposite or sub-opposite bracts in upper half. Bracts 3-4mm long.
Flowers - Corolla violet, +2cm broad and long. Petals 5, fading to pale yellow at base, with dark venation near base. Lateral petals bearded. Lower petal spurred. Stamens 5, connate around ovary. Bottom two stamens with flattened curved nectaries to +3mm long. Ovary conic, -3mm long. Style to -2mm long, truncate and triangular at apex. Sepals 5, to 9mm long, 3mm broad, mostly glabrous or very sparsely pubescent, topmost one recurved. Auricles 1mm long, rounded at base.
Flowering - March - June.
Habitat - Slopes, open and low woods, thickets, streambanks.
Origin - Native to U.S.
Other info. - This is a common violet in the state. It greatly resembles other plants in the genus but differs in having the typically densely pubescent leaves and peduncles. The leaves can grow larger than what I posted above but the above numbers are the typical leaf size at anthesis, and this is when most people are likely to be paying attention to the plants.
Steyermark lists two forms based on corolla color. Form sororia, shown above, has the typical blue-purple corolla. Form Beckwithae House has a white corolla and is rare.
Stems - A thick underground caudex.
Leaves - All arising from base of plant. Petioles to +15cm long, hirsute, with single longitudinal groove. Blades of lower leaves rounded at apex, reniform, or ovate, crenate to serrate, pubescent. Upper leaf blades cordate at base, gradually tapering to an acute or blunt apex, serrate, densely pubescent(hirsute), to +5cm broad, +5cm long.
Inflorescence - Single flowers on long peduncles from base of plant. Peduncles to +10cm long, hirsute, curved at apex, with pair of opposite or sub-opposite bracts in upper half. Bracts 3-4mm long.
Flowers - Corolla violet, +2cm broad and long. Petals 5, fading to pale yellow at base, with dark venation near base. Lateral petals bearded. Lower petal spurred. Stamens 5, connate around ovary. Bottom two stamens with flattened curved nectaries to +3mm long. Ovary conic, -3mm long. Style to -2mm long, truncate and triangular at apex. Sepals 5, to 9mm long, 3mm broad, mostly glabrous or very sparsely pubescent, topmost one recurved. Auricles 1mm long, rounded at base.
Flowering - March - June.
Habitat - Slopes, open and low woods, thickets, streambanks.
Origin - Native to U.S.
Other info. - This is a common violet in the state. It greatly resembles other plants in the genus but differs in having the typically densely pubescent leaves and peduncles. The leaves can grow larger than what I posted above but the above numbers are the typical leaf size at anthesis, and this is when most people are likely to be paying attention to the plants.
Steyermark lists two forms based on corolla color. Form sororia, shown above, has the typical blue-purple corolla. Form Beckwithae House has a white corolla and is rare.
1
1
文章
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.
0
0
