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Argemone hispida A. Gray  
Family: Papaveraceae
Rough Prickly-Poppy, more...rough pricklypoppy, rough prickly poppy
[Argemone bipinnatifida Greene, moreArgemone platyceras var. hispida (A. Gray) Prain]
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Petr Voboril
  • FNA
  • Resources
Gerald B. Ownbey in Flora of North America (vol. 3)
Plants perennial. Stems 3-6 dm, densely prickly and crisped-hispid. Leaf blades: surfaces sparsely to densely crisped-hispid between veins, abaxial surface mostly densely prickly on midrib and main veins, adaxial surface less so; proximal lobed 4/5 distance to midrib; distal not clasping. Inflorescences: buds oblong, body 16-20 × 14-18 mm, prickly and hispid; sepal horns 4-7 mm, prickly, apical prickle flattened, indurate. Flowers 7-10 cm broad; petals white; stamens 150 or more; filaments pale yellow; pistil 3-4-carpellate. Capsules ovoid, 30-40 × 12-18 mm (including stigma and excluding prickles), densely prickly, surface obscured, longest prickles straight or incurved, ca. 5 mm. Seeds ca. 2.5 mm.

Flowering spring-summer; fruiting summer-fall. Prairies, slopes, and eastern foothills of the Laramie and Rocky mountains; 1400-2100 m; Colo., N.Mex., Wyo.
Argemone hispida
Open Interactive Map
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This project was made possible in part by the Institute of Museum and Library Services [MG-70-19-0057-19].
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