Antennaria umbrinella
(Umber Pussytoes)
Antennaria umbrinella, Lower McCullough Gulch, Summit Co. 2324/2341
Antennaria umbrinella, Lower McCullough Gulch, Summit Co. 2285
Antennaria umbrinella, Lower McCullough Gulch, Summit Co. 2293
Antennaria umbrinella, Boreas Pass, Summit Co. 7702
Antennaria umbrinella, Lower McCullough Gulch, Summit Co. 2281
Antennaria umbrinella, Lower McCullough Gulch, Summit Co. 2297
| Scientific Name | Antennaria umbrinella | USDA PLANTS Symbol | ANUM |
| Common Name | Umber Pussytoes | ITIS Taxonomic Serial No. | 36761 |
| Family | Asteraceae (Sunflower) | SEINet Reference |
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| Description |
Life zones and habitat: Foothills to subalpine (7500 to 13000 ft.); dry meadows, rocky slopes and open. Plant: Perennial, dioecious, mat-forming with hairy foliage; 3 to 8 inches tall with usually erect stolons. Leaves: Basal leaves spatulate to narrowly oblanceolate, 3/8 to 3/4-inch long, tips mucronate; stem leaves linear less than 3/4-inch long; both are one-nerved and have white-hairy upper and lower surfaces. Inflorescence: Small whitish yellow to pale brown flowers clustered in corymbiform arrays of 3 to 8; no ray flowers; plants with either staminate or pistillate flowers; phyllaries may have pinkish tint; staminate flowers with wide, blunt phyllaries; pistillate flowers with narrower, more pointed phyllaries. Bloom Period: June to August. Reference: “Flora of Colorado” by Jennifer Ackerfield, Flora of North America and American Southwest. Note: Both staminate and pistillate plants are shown in the images below. |
BONAP Distribution Map Map Color Key |
Colorado Status: Native |
© Tom Lebsack 2025
Banner photo: Castilleja rhexifolia and a brewing storm over the San Juan Mountains
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