Difference between revisions of "Gerardia"
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Gerardia (after John Gerarde, 1545-1607, perhaps the most popular of the herbalists). Scrophulariaceae. Hardy annual and perennial herbs, all American, and mostly of the Atlantic states, with yellow or rosy purple flowers, in late summer and autumn, the later color rarely varying to white. | Gerardia (after John Gerarde, 1545-1607, perhaps the most popular of the herbalists). Scrophulariaceae. Hardy annual and perennial herbs, all American, and mostly of the Atlantic states, with yellow or rosy purple flowers, in late summer and autumn, the later color rarely varying to white. | ||
Leaves mainly opposite: calyx 5-toothed or cleft; corolla bell- to funnel-shaped, broad-throated, 5-parted, the 2 posterior lobes often smaller and more united; stamens commonly more or less hairy; anthers more or less approximate in pairs: caps, globose, 2-grooved; seeds usually angled, loose-coated. The first 3 species described below belong to a section in which the roots are more or less saprophytic; by some, and probably correctly, they are considered as belonging to the genus Dasystoma. These plants are therefore rather difficult to cultivate, and are offered only by collectors. G. tenuifolia is offered by one dealer, the seeds presumably gathered in European gardens. | Leaves mainly opposite: calyx 5-toothed or cleft; corolla bell- to funnel-shaped, broad-throated, 5-parted, the 2 posterior lobes often smaller and more united; stamens commonly more or less hairy; anthers more or less approximate in pairs: caps, globose, 2-grooved; seeds usually angled, loose-coated. The first 3 species described below belong to a section in which the roots are more or less saprophytic; by some, and probably correctly, they are considered as belonging to the genus Dasystoma. These plants are therefore rather difficult to cultivate, and are offered only by collectors. G. tenuifolia is offered by one dealer, the seeds presumably gathered in European gardens. | ||
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'''''Gerardia '''''L. ([[synonymy|syn.]] ''Stenandrium'', Greek, narrow anthers). Acanthaceae. Nearly stemless or short-stemmed herbs, frequently villous or pubescent, adapted to the warm- or coolhouse: lvs. often radical or clustered at the base of the st., very entire: spikes scape-like, peduncled, dense or interrupted: fls. usually small at the axils of the opposite bracts, solitary, sessile, spicate; calyx 5-parted, segms. narrow, acute; corolla-tube slender, cylindrical, limb oblique, 5-lobed, lobes obovate, retuse; stamens 4, didynamous: caps. oblong or subfusiform, subterete, 4-seeded or by abortion fewer-seeded.—About 30 species, Trop. and Subtrop. Amer. | '''''Gerardia '''''L. ([[synonymy|syn.]] ''Stenandrium'', Greek, narrow anthers). Acanthaceae. Nearly stemless or short-stemmed herbs, frequently villous or pubescent, adapted to the warm- or coolhouse: lvs. often radical or clustered at the base of the st., very entire: spikes scape-like, peduncled, dense or interrupted: fls. usually small at the axils of the opposite bracts, solitary, sessile, spicate; calyx 5-parted, segms. narrow, acute; corolla-tube slender, cylindrical, limb oblique, 5-lobed, lobes obovate, retuse; stamens 4, didynamous: caps. oblong or subfusiform, subterete, 4-seeded or by abortion fewer-seeded.—About 30 species, Trop. and Subtrop. Amer. | ||
Latest revision as of 10:29, 4 September 2009
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| Exposure: | ☼ | ?"?" is not in the list (sun, part-sun, shade, unknown) of allowed values for the "Exposure" property. |
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| Water: | ◍ | ?"?" is not in the list (wet, moist, moderate, dry, less when dormant) of allowed values for the "Water" property. |
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Gerardia > |
Read about Gerardia in the Standard Cyclopedia of Horticulture
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Gerardia (after John Gerarde, 1545-1607, perhaps the most popular of the herbalists). Scrophulariaceae. Hardy annual and perennial herbs, all American, and mostly of the Atlantic states, with yellow or rosy purple flowers, in late summer and autumn, the later color rarely varying to white. Leaves mainly opposite: calyx 5-toothed or cleft; corolla bell- to funnel-shaped, broad-throated, 5-parted, the 2 posterior lobes often smaller and more united; stamens commonly more or less hairy; anthers more or less approximate in pairs: caps, globose, 2-grooved; seeds usually angled, loose-coated. The first 3 species described below belong to a section in which the roots are more or less saprophytic; by some, and probably correctly, they are considered as belonging to the genus Dasystoma. These plants are therefore rather difficult to cultivate, and are offered only by collectors. G. tenuifolia is offered by one dealer, the seeds presumably gathered in European gardens.
The above text is from the Standard Cyclopedia of Horticulture. It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article. Click on "Collapse" in the header to hide this text. |
Read about Gerardia in the Standard Cyclopedia of Horticulture
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Gerardia L. (syn. Stenandrium, Greek, narrow anthers). Acanthaceae. Nearly stemless or short-stemmed herbs, frequently villous or pubescent, adapted to the warm- or coolhouse: lvs. often radical or clustered at the base of the st., very entire: spikes scape-like, peduncled, dense or interrupted: fls. usually small at the axils of the opposite bracts, solitary, sessile, spicate; calyx 5-parted, segms. narrow, acute; corolla-tube slender, cylindrical, limb oblique, 5-lobed, lobes obovate, retuse; stamens 4, didynamous: caps. oblong or subfusiform, subterete, 4-seeded or by abortion fewer-seeded.—About 30 species, Trop. and Subtrop. Amer.
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Cultivation
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Propagation
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Pests and diseases
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Species
Species includewp:
- Gerardia angustifolia
- Gerardia brachyphylla
- Gerardia communis
- Gerardia genistaefolia
- Gerardia hispidula
- Gerardia linarioides
Gallery
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References
- Standard Cyclopedia of Horticulture, by L. H. Bailey, MacMillan Co., 1963
External links
- w:Gerardia. Some of the material on this page may be from Wikipedia, under the Creative Commons license.
- Gerardia QR Code (Size 50, 100, 200, 500)
