Opuntia humifusa
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Read about Opuntia humifusa in the Standard Cyclopedia of Horticulture
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Opuntia humifusa, Raf. (O. Rafinesquii. Engelm. O. mesacantha, Raf.). Fig. 2602 (adapted from Pacific R. R. Report). A wide-spreading, prostrate plant, freely rooting from the lower margin of the joints, roots sometimes tuberous: joints obovate to orbicular, usually 2-5 in. long and 2-4 in. wide, sometimes twice as large, dark to light green: areoles with gray wool and bright reddish brown bristles; spines sometimes wanting, when present 1-3 and mostly marginal, stout, 1 in. long, white with darker tips and bases, frequently 1-3 small secondary spines also present: fls. 3 in. or less diam., golden yellow, frequently with reddish center: fr. slender-clavate or broader, 1½-2 in. long, yellowish red to purple, with insipid purplish pulp; seeds comparatively large. W. Cent. U. S.—An exceedingly variable species of wide distribution and imperfectly known. Many varieties have been described, some of which are in the trade. The extreme forms vary greatly from the type. Of these forms vars. Greenii, oplocarpa, cymochila, stenochila and macrorhiza, Hort., have appeared in the trade.
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References
- Standard Cyclopedia of Horticulture, by L. H. Bailey, MacMillan Co., 1963
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