Flora of North America species comparison

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Argemone hispida

rough prickly poppy
Habit 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.

Argemone hispida
Phenology Flowering spring–summer; fruiting summer–fall.
Habitat Prairies, slopes, and eastern foothills of the Laramie and Rocky mountains
Elevation 1400-2100 m (4600-6900 ft)
Distribution
from FNA
CO; NM; WY
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 3.
Parent taxa Papaveraceae > Argemone
Sibling taxa
A. aenea, A. albiflora, A. arizonica, A. aurantiaca, A. chisosensis, A. corymbosa, A. gracilenta, A. mexicana, A. munita, A. ochroleuca, A. pleiacantha, A. polyanthemos, A. sanguinea, A. squarrosa
Synonyms A. bipinnatifida, A. platyceras var. hispida
Name authority A. Gray: Mem. Amer. Acad. Arts 4: 5. (1849)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Fabaceae, Apiaceae, Boraginaceae, and Polemoniaceae.)

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