Astragalus laxmannii var. robustior
(Prairie Milkvetch)
Astragalus laxmannii var. robustior, Lathrop State Park, Huerfano Co. 7553
Astragalus laxmannii var. robustior, Lathrop State Park, Huerfano Co. 7547
Astragalus laxmannii var. robustior. Pawnee Buttes, Weld Co. 7921
Astragalus laxmannii var. robustior. Pawnee Buttes, Weld Co. 7923
Astragalus laxmannii var. robustior. Pawnee Buttes, Weld Co. 7487
Astragalus laxmannii var. robustior. Pawnee Buttes, Weld Co. 7482
Astragalus laxmannii var. robustior, Lathrop State Park, Huerfano Co. 7551
| Scientific Name | Astragalus laxmannii var. robustior (Astragalus adsurgens var. robustior) | USDA PLANTS Symbol | ASLAR |
| Common Name | Prairie Milkvetch | ITIS Taxonomic Serial No. | 566195 |
| Family | Fabaceae (Pea) | SEINet Reference |
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| Description |
Life zones and habitat: Plains to subalpine (4000 to 10500 ft.); sandy soils and rock outcrops in prairies, open forests and mountain meadows. Plant: Erect, tufted or decumbent perennial with numerous stems 4 to 12 inches tall. Leaves: Alternate, , pinnately-compound leaves 1-1/2 to 6 inches long, each with 11 to 21 narrowly elliptic-lanceolate to oblong leaflets 3/8 to 1 inch long; upper surface smooth or covered with appressed hairs, lower surface hairy. Inflorescence: Dense, head-like or spike-like raceme arising on stalks 2 to 6 inches long from leaf axils; head with 15 to 50 short-stalked, ascending, pea-like flowers with blue-lavender to white corollas, 1/2 to almost 3/4-inch long; calyces have appressed black and white hairs, and sharply-pointed teeth from 1/3 as long to as long as the calyx tubes. Bloom Period: June to August. References: "Flora of Colorado" by Jennifer Ackerfield, E-Flora-BC and Flora of North America. |
BONAP Distribution Map
Map Color Key |
Colorado Status: Native |
© Tom Lebsack 2024
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