Parthenium

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Standard Cyclopedia of Horticulture

Parthenium (ancient name transferred to this plant). Compositae. About a dozen perennial or annual, mostly canescent or pubescent, rather coarse herbs or shrubs of the western hemisphere, only rarely taken to gardens and apparently not domesticated. The heads are only inconspicuously rayed and not specially showy, the ray-florets about 5. P. integrifolium, Linn., the American Feverfew, or Prairie Dock, has been offered as an ornamental hardy herbaceous perennial, but the plant is desirable only for foliage effects; and the fls. are not attractive. It is pictured in B.B. 3:411 and described in American manuals; it grows on dry soils from Minn, to Ga.: stout, to 4 ft., from a tuberous rootstock: lvs. ovate or ovate-oblong: heads many in a dense corymb, the rays whitish. The so-called "guayule rubber" of Mex., P. argentatum, Gray, the difficulty of growing which has caused much discussion, is reported as being under cult, in Mexico City by M. Calvino. It is unknown in horticulture. CH 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 It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article.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.

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References

• Standard Cyclopedia of Horticulture, by L. H. Bailey, MacMillan Co., 1963

External links

• w:Parthenium. Some of the material on this page may be from Wikipedia, under the Creative Commons license.
• Parthenium QR Code (Size 50, 100, 200, 500)