Argemone polyanthemos
(Crested Prickly-poppy)
Argemone polyanthemos, Lathrop State Park, Huerfano Co. 7568
Argemone polyanthemos, Pawnee Buttes, Weld Co. 7334
Argemone polyanthemos, Pawnee Buttes, Weld Co. 7324
Buds, Argemone polyanthemos, Pawnee Buttes, Weld Co. 7339
Capsule, Argemone polyanthemos, Pawnee Buttes, Weld Co. 7344
Leaf, Argemone polyanthemos, Pawnee Buttes, Weld Co. 7335
Argemone polyanthemos, Pawnee Buttes, Weld Co. 7376
| Scientific Name | Argemone polyanthemos | USDA PLANTS Symbol | ARPO2 |
| Common Name | Crested Prickly-poppy, Thistle Poppy | ITIS Taxonomic Serial No. | 18926 |
| Family | Papaveraceae (Poppy) | SEINet Reference |
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| Description |
Life zones and habitat: Plains to Montane (3700 to 8000 ft.); dry, sandy soils in grasslands and along roadsides. Plant: Erect annual or biennial; stout, somewhat prickly stems, 16 to 32 inches tall. Leaves: Basal leaves in a rosette; stem leaves alternate, deeply pinnately-lobed, 2-3/4 to 8 inches long, upper surface unarmed, lower with prickles on main veins; prickles on margins and lobe tips. Inflorescence: Showy, large white blossoms, 2-3/4 to 4 inches across; 6 white papery-thin petals, 150 or more bright yellow stamens; flower buds ellipsoid-oblong, body 5/8 to 7/8 inches long, somewhat prickly. Bloom Period: June to August. Fruit: Very prickly ellipsoid-shaped capsule is less than 1/4 inch long (including stigma and excluding prickles). References: "Flora of Colorado" by Jennifer Ackerfield, American Southwest and SEINet. |
BONAP Distribution Map Map Color Key |
Colorado Status: Native |
© Tom Lebsack 2024
Banner photo: Castilleja rhexifolia and a brewing storm over the San Juan Mountains