Compilation
Argemone ochroleuca

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Name

Identification
Isotype of Argemone ochroleuca (Prain) G. B. Ownbey [family PAPAVERACEAE ] (stored under name); Verified by Not on sheet,
Related name
  • Argemone mexicana
  • Argemone ochroleuca

Flora

Entry for Argemone ochroleuca Sweet [family PAPAVERACEAE]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 3,
Names
Argemone ochroleuca Sweet [family PAPAVERACEAE], Brit. Fl. Gard., 3: plate 242. 1828
Argemone mexicana Linnaeus var. ochroleuca (Sweet) Lindley [family PAPAVERACEAE]
Information
Plants annual or short-lived perennial. Stems branching distally, 3-10 dm, sparingly prickly. Leaf blades: abaxial surface sparingly prickly on veins, adaxial surface usually unarmed; proximal deeply lobed nearly to midrib; distal more shallowly lobed, usually clasping. Inflorescences: buds oblong, body 8-18 × 4-11 mm, with 4-10 prickles per sepal; sepal horns terete, 5-12 mm, unarmed. Flowers 3-7 cm broad, closely subtended by 1-2 foliaceous bracts; petals lemon yellow or rarely darker yellow; stamens 20-75; filaments yellow; pistil 3-6-carpellate. Capsules ovoid-ellipsoid to oblong, 20-50 × 10-18 mm (including stigma and excluding prickles), longest prickles 8-12 mm. Seeds 1.5-2 mm. 2n = 56.
Phenology
Flowering and fruiting spring-fall
Altitude range
0-2250 m
Distribution
Mexico.USA Ariz.
Discussion
Argemone ochroleuca is widespread in temperate and tropical regions of the world as an introduced weed.
Native/Introduced
introduced

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