Argemone corymbosa

Greene

Bull. Calif. Acad. Sci. 2: 59. 1886.

Endemic
Synonyms: Argemone intermedia var. corymbosa (Greene) Eastwood
Treatment appears in FNA Volume 3.

Plants perennial. Stems 2-8 dm, scattered-prickly. Leaf-blades: surfaces shallowly to deeply lobed, thick, leathery, surfaces unarmed to sparingly prickly, especially abaxial surface on veins; distal clasping. Inflorescences: buds subglobose to ellipsoid-ovoid, body 10-18 × 8-14 mm, sparingly prickly; sepal horns terete or flattened in cross-section, 5-7 mm. Flowers 4-9 cm broad; petals white; stamens 100-120; filaments pale-yellow; pistil 3-5-carpellate. Capsules ovoid to lanceoloid, 25-35 × 10-16 mm (including stigma and excluding prickles), prickly, surface clearly visible, prickles simple, well spaced, subequal, longest 5-7 mm. Seeds 1.5-2 mm.

Discussion

Subspecies 2 (2 in the flora).

Selected References

None.

Key

1 Leaf blades essentially unlobed to lobed ca. 1/4 distance to midrib. Argemone corymbosa subsp. corymbosa
1 Leaf blades lobed 1/2–3/4 distance to midrib. Argemone corymbosa subsp. arenicola

"longest" is not a number."dm" is not declared as a valid unit of measurement for this property."thick" is not a number.

... more about "Argemone corymbosa"
Gerald B. Ownbey +
Greene +
palmate +  and subpalmate +
1×-lobed +, commonly shallowly +  and unlobed +
1 cm10 mm <br />0.01 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
subglobose +  and ellipsoid-ovoid +
2.5 cm25 mm <br />0.025 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
ovoid +  and lanceoloid +
1 cm10 mm <br />0.01 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
Ariz. +, Calif. +  and Utah +
sessile +, pedicellate +  and symmetric +
conspicuous +
4 cm40 mm <br />0.04 m <br /> (9 cm90 mm <br />0.09 m <br />) +
transverse +, poricidal +, valvate +  and dehiscence +
tipped +  and hollow +
subterminal +
paniculate +  and racemose +
terminal +  and axillary +
alternate +  and opposite or whorled +
cauline +  and basal +
1-2-locular or +  and incompletely completely multilocular +
distinct +
obovate +
2 times number of sepals +
3-5-carpellate +
subequal +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Bull. Calif. Acad. Sci. +
white +  and orange +
carunculate +  and arillate +
subglobose +
0.15 cm1.5 mm <br />0.0015 m <br /> (?) +  and 0.2 cm2 mm <br />0.002 m <br /> (?) +
list +  and count +
list +  and count +
flattened +  and terete +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
3 +  and 2 +
obovate +
100 +  and 120 +
scattered-prickly +
decumbent +, spreading +  and erect +
persistent +
3-5(-7)-lobed +
persistent +
0 cm0 mm <br />0 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
unarmed +  and sparingly prickly +
hispid +, glabrous +  and glaucous +
Argemone intermedia var. corymbosa +
Argemone corymbosa +
Argemone +
species +
3 +  and 2 +