Difference between revisions of "Dipsacaceae"
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| − | Dipsacaceae (from the genus Dipsacus, derived from the Greek to thirst, in allusion to the water-holding leaf-bases). Teasel Family | + | Dipsacaceae (from the genus Dipsacus, derived from the Greek to thirst, in allusion to the water-holding leaf-bases). Teasel Family. Annual or perennial herbs: leaves opposite, rarely whorled: flowers small, bisexual, mostly irregular, epigynous, in dense involucrate heads; each flower also surrounded by a cup-shaped, more or less scarious, involucre, which is a metamorphosed bracteole; calyx of setaceous segments or crown-like, or plumose, or various; corolla 4-5-lobed, gamopetalous, usually irregular; lobes imbricated; stamens 4, rarely 2-3, mostly epipetalous; ovary inferior, 1-celled, 1-ovuled; style 1; stigmas 2: fruit an achene. |
The family has 10 genera and about 150 species, all natives of warm-temperate regions of the Old World, and mostly of the eastern Mediterranean region. The family is related to the Valerianaceae, and more distantly to the Composite. The gamopetalous corolla, 2 carpels, involucrate heads and involucrate flowers are distinctive. | The family has 10 genera and about 150 species, all natives of warm-temperate regions of the Old World, and mostly of the eastern Mediterranean region. The family is related to the Valerianaceae, and more distantly to the Composite. The gamopetalous corolla, 2 carpels, involucrate heads and involucrate flowers are distinctive. | ||
Latest revision as of 19:52, 18 May 2009
Read about Dipsacaceae in the Standard Cyclopedia of Horticulture
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Dipsacaceae (from the genus Dipsacus, derived from the Greek to thirst, in allusion to the water-holding leaf-bases). Teasel Family. Annual or perennial herbs: leaves opposite, rarely whorled: flowers small, bisexual, mostly irregular, epigynous, in dense involucrate heads; each flower also surrounded by a cup-shaped, more or less scarious, involucre, which is a metamorphosed bracteole; calyx of setaceous segments or crown-like, or plumose, or various; corolla 4-5-lobed, gamopetalous, usually irregular; lobes imbricated; stamens 4, rarely 2-3, mostly epipetalous; ovary inferior, 1-celled, 1-ovuled; style 1; stigmas 2: fruit an achene. The family has 10 genera and about 150 species, all natives of warm-temperate regions of the Old World, and mostly of the eastern Mediterranean region. The family is related to the Valerianaceae, and more distantly to the Composite. The gamopetalous corolla, 2 carpels, involucrate heads and involucrate flowers are distinctive. Dipsacus and Scabiosa have been used in medicine. The spiny hooked bracts of Dipsacus ferox (fuller's teasel of southwestern Asia) have been used to full cloth, whence the common name; and the plant was once cultivated extensively for this purpose. The connate leaf-bases of Dipsacus sylvestris hold several ounces of rain-water until evaporated. This contrivance may be of benefit in preventing the ascent of harmful insects. Four genera are in cultivation in North America: Cephalaria, Morina, and Scabiosa as ornamental plants; Dipsacus ferox (D. fullonum), locally cultivated in New York state for fulling cloth.
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Genera
Gallery
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References
- Standard Cyclopedia of Horticulture, by L. H. Bailey, MacMillan Co., 1963
External links
- w:Dipsacaceae. Some of the material on this page may be from Wikipedia, under the Creative Commons license.
- Dipsacaceae QR Code (Size 50, 100, 200, 500)
