Asclepias engelmanniana
(Engelmann’s Milkweed)
Asclepias engelmanniana, Picture Canyon, Comance National Grassland, Baca Co. 9559
Asclepias engelmanniana, Picture Canyon, Comance National Grassland, Baca Co. 9551
Asclepias engelmanniana, Picture Canyon, Comance National Grassland, Baca Co. 9555
Asclepias engelmanniana, Picture Canyon, Comance National Grassland, Baca Co. 9562
Asclepias engelmanniana, Picture Canyon, Comance National Grassland, Baca Co. 9565
| Scientific Name | Asclepias engelmanniana | USDA PLANTS Symbol | ASEN |
| Common Name | Engelmann's Milkweed | ITIS Taxonomic Serial No. | 30263 |
| Family | Apocynaceae (Dogbane) | SEINet Reference |
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| Description |
Life zones and habitat: Plains to foothills (3700 to 6500 ft.); dry, sandy, rocky, calcareous soils; grasslands, along creeks, canyons and open woodlands. Plant: Erect perennial, 24 to 60 inches tall; single stem, or sparsely branched above and smooth or slightly hairy; milky sap. Leaves: Very narrow, drooping, long, linear blades, 2 to 10 inches long and 0.04 to 0.3-inch wide, mostly smooth on both surfaces. Inflorescence: Umbels in the upper portion of the stem, about 2 inches wide; individual flowers are about 3/8-inch wide and have 5 pale greenish-white pointed petals with purplish tips; the corona has 5 broad white, curved hoods closely upright next to the central column. Bloom Period: June to August. References: "Flora of Colorado" by Jennifer Ackerfield, Kansas Wildflowers and Grasses and SEINet. |
BONAP Distribution Map Map Color Key |
Colorado Status: Native |
© Tom Lebsack 2024
Banner photo: Ten Mile Range and Rhodiola integrifolia (King’s Crown) in Summit County