View source for Argemone platyceras

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|genus=Argemone 
|species=platyceras
|Temp Metric=°F
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Argemone platyceras, Link & Otto. Robust, 1?-4 ft., very spiny, the Lvs. glaucous: Lvs. sinuate-pinnatifid, spiny: fl.-bracts aggregated below the fls.; petals truncate, large, white (rarely purple), the fls. 2 in. or more across: caps.-valves crested or spiny. Var. hispida, Prain (A. hispida, Gray). Petals rounded; sepals and caps, densely prickly: plant hispid. Var. hispido-rosea, Fedde. Petals rounded, rose or rosy white; sepals narrow, sparsely prickly. Var. Hunnemanii, Fedde. Petals rounded, white: plant stout.—The species is very variable and widely distributed in N. and S. Amer. Likely to appear in cult, in several forms; all of them have thick and densely prickly caps.-valves.
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