UW Burke Herbarium species comparison

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Chaenactis douglasii

hoary chaenactis, hoary false-yarrow
Habit Biennial or perennial tap-rooted herb, 1-6 dm. tall, loosely white-woolly throughout.
Leaves

Leaves 2-12 cm. long, 1-3 times pinnatifid, the somewhat thick segments curled, the upper leaves less dissected than the tufted lower ones.
Flowers

Heads several in a flat-topped inflorescence, rayless;

involucre 7-16 mm. high, glandular, the bracts narrow and sub-equal;

flowers white to pink;

pappus of 10-16 hyaline scales;

receptacle naked.

Chaenactis douglasii
Flowering time May-September
Habitat Sagebrush desert flats and slopes, ponderosa pine forest openings, and meadows near the subalpine.
Distribution
Occurring east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains and northern Great Plains.
[WildflowerSearch map]
[BONAP county map]
Origin Native
Conservation status Not of concern
Sibling taxa
C. thompsonii
Subordinate taxa
C. douglasii var. douglasii
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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