Descurainia incana
(Mountain Tansy-mustard)
Descurainia incana, Hoosier Ridge, Summit Co. 4816
Descurainia incana, Hoosier Ridge, Summit Co. 4801
Descurainia incana, Hoosier Ridge, Summit Co. 9461
Descurainia incana, Hoosier Ridge, Summit Co. 9436
Descurainia incana, Mayflower Gulch, Summit Co. 4778
Descurainia incana, Mayflower Gulch, Summit Co. 4765
Descurainia incana, Hoosier Ridge, Summit Co. 4809
Descurainia incana, Hoosier Ridge, Summit Co. 9428
| Scientific Name | Descurainia incana | USDA PLANTS Symbol | DEIN5 |
| Common Name | Mountain Tansy-mustard | ITIS Taxonomic Serial No. | 502003 |
| Family | Brassicaceae (Mustard) | SEINet Reference |
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| Description |
Life zones and habitat: Foothills to subalpine (5300 to 11500 ft.); gravelly areas, grassy slopes, steep rocky slopes, roadsides, disturbed sites, meadows, prairies. Plant: Erect biennial 10 to 48 inches tall; thin, leafy stem, smooth or slightly hairy, not glandular, with branches above. Leaves: Deeply-lobed (pinnatifid) leaves, stem leaves alternate; lobes linear to oblong or narrowly lanceolate. Inflorescence: Custers of flowers in racemes at leaf nodes and top of stem; compact but becoming elongated at fruiting; small flowers with four yellow sepals and four yellow petals, all less than 1/10 inch long. Bloom Period: May to August. Fruit: About 3/8-inch long or less, erect and appressed (hugging the stem), slightly torulose and attached by stalks about the same length. References: "Flora of Colorado" by Jennifer Ackerfield, SEINet and American Southwest. |
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