Antennaria umbrinella

(Umber Pussytoes)

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Antennaria umbrinella, Lower McCullough Gulch, Summit Co. 2324/2341

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Antennaria umbrinella, Lower McCullough Gulch, Summit Co. 2285

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Antennaria umbrinella, Lower McCullough Gulch, Summit Co. 2293

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Antennaria umbrinella, Boreas Pass, Summit Co. 7702

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Antennaria umbrinella, Lower McCullough Gulch, Summit Co. 2281

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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
Click Here
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 2022

Banner photo: Ten Mile Range and Rhodiola integrifolia (King’s Crown) in Summit County