Argemone munita subsp. rotundata

(Rydberg) G. B. Ownbey

Mem. Torrey Bot. Club 21: 77. 1958.

Basionym: Argemone rotundata Rydberg Bull. Torrey Bot. Club 29: 160. 1902
Synonyms: Argemone munita var. rotundata (Rydberg) Shinners
Treatment appears in FNA Volume 3.

Stems usually purplish, 4-10 dm, with 120-500 prickles per cm⊃2; on main stem below capsule, longest prickles 4-6 mm. Leaf blades: surfaces usually densely prickly on veins and intervein areas. Inflorescences: bud prickles sometimes branched. Capsules usually densely prickly, surface partially obscured, prickles unequal, longest to 8 mm. 2n = 28.

Phenology: Flowering spring–fall; fruiting summer–fall.
Habitat: Open slopes and foothills, full sun
Elevation: 1200-2500 m


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Ariz., Calif., Idaho, Nev., Oreg., Utah.


Selected References


Lower Taxa

Gerald B. Ownbey +
(Rydberg) G. B. Ownbey +
Argemone rotundata +
Ariz. +, Calif. +, Idaho +, Nev. +, Oreg. +  and Utah. +
1200-2500 m +
Open slopes and foothills, full sun +
Flowering spring–fall +  and fruiting summer–fall. +
Mem. Torrey Bot. Club +
Illustrated +  and Endemic +
Argemone munita var. rotundata +
Argemone munita subsp. rotundata +
Argemone munita +
subspecies +