Eriogonum umbellatum var. umbellatum
(Sulphur-flower Buckwheat)
Eriogonum umbellatum var. umbellatum, Swan Mountain, Summit Co. 3702
Eriogonum umbellatum var. umbellatum, Troublesome Creek, Grand Co. 0212
Eriogonum umbellatum var. umbellatum, Troublesome Creek, Grand Co. 0206
Eriogonum umbellatum var. umbellatum, Swan Mountain, Summit Co. 3733
Eriogonum umbellatum var. umbellatum, FR265, Gunnison National Forest, Gunnison Co. 2665
Eriogonum umbellatum var. umbellatum, Swan Mountain, Summit Co. 6969
Eriogonum umbellatum var. umbellatum, North Swan River Valley, Summit Co. 5120
Upper Leaf Surface, Eriogonum umbellatum var. umbellatum, Swan Mountain, Summit Co. 3740
Lower Leaf Surface, Eriogonum umbellatum var. umbellatum, Swan Mountain, Summit Co. 3742
Eriogonum umbellatum var. umbellatum, Troublesome Creek, Grand Co. 0211
| Scientific Name | Eriogonum umbellatum var. umbellatum | USDA PLANTS Symbol | ERUMU2 |
| Common Name | Sulfur-flower Buckwheat | ITIS Taxonomic Serial No. | 195595 |
| Family | Polygonaceae (Buckwheat) | SEINet Reference |
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| Description |
Life zones and habitat: Foothills to subalpine (5500 to 10000 ft); dry slopes, sagebush meadows, forests. Plant: Mat-forming perennial with erect stems up to to 10 inches tall; stems hairy and leafless. Leaves: Basal oblong-ovate to oblanceolate or oval leaves; lower surface grayish, densely covered with fine hairs; upper surfaces green, smooth or slightly hairy; 3/8 to 1 inch long and up to 5/8-inch wide. Inflorescence: Clusters of tiny, sometimes red-tinted, buds becoming bright yellow flowers, each less than 1/4-inch across, in large umbels with a single whorl of green, leafy bracts just below. Bloom Period: June to October. References: "Flora of Colorado" by Jennifer Ackerfield, SW Colorado Wildflowers and Flora of North America. |
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