Argemone aurantiaca G.B. Ownbey:
United States (North America)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

Type of Residency: Year-round

Plants annual or biennial. Stems widely branching, to ca. 8 dm, prickly throughout. Leaf blades: abaxial surface sparingly to copiously prickly on and sometimes between veins, adaxial surface less so; proximal lobed 5/6 distance to midrib; distal often clasping. Inflorescences: buds oblong, body 18-25 × 14-18 mm, prickly, longest prickles sometimes branched; sepal horns angular in cross section or flattened, 8-12 mm, prickly, apical prickle indurate. Flowers 8-l2 cm broad, closely subtended by 1-2 foliaceous bracts; petals white; stamens 150 or more; filaments pale yellow; pistil 5-6-carpellate. Capsules ovoid, 40-50 × 15-25 mm (including stigma and excluding prickles); prickles herbaceous, erect or reflexed, often branched, very unequal, longest 15-35 mm. Seeds 2.5-3 mm. 2 n = 84.

Isotype for Argemone aurantiaca G.B. Ownbey
Catalog Number: US 2260212
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Card file verified by examination of original publication
Preparation: Pressed specimen
Collector(s): G. B. Ownbey & F. Ownbey
Year Collected: 1950
Locality: 6.3 mi NE of San Marcos, Highway 81. Mixed., Hays, Texas, United States, North America

Flowering spring-summer; fruiting summer-fall. Fields, pastures, hills; 150-500 m (transition zone between lowlands and plateau); Tex.

Rounded Global Status Rank: G4 - Apparently Secure

United States

Rounded National Status Rank: N4 - Apparently Secure