Crepis acuminata, mountain hawksbeard

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Intermountain Flora
Perennial with 1-3 stems from a taproot, 2-7 dm tall; herbage gray-tomentulose, or sometimes eventually glabrate; basal and lower cauline leaves mostly 1-4 dm long, pinnately lobed, mostly with broad undivided midstrip, the lobes entire or sometimes toothed or cleft; heads relatively numerous, commonly (12) 20-100 or more, cylindric, 5-10 (12)-flowered; involucre 8-16 mm high, essentially glabrous, or the very short outer bracts somewhat tomentulose-puberulent on the margins, the outer bracts mostly less than half as long as the 5-7 (8) inner ones; corollas 10-18 mm long; achenes mostly yellow or brownish, 6-9 mm long, more or less narrowed above; sexual and diploid, 2n = 22, or apomictic and polypoid, 2n = 33-ca 88.

Cronquist, A., Holmgren, A.H., Holmgren, N.H., Reveal, J.L., and Holmgren, P.K. (1994) "Intermountain Flora" pg.464, vol. 5, The New York Botanical Garden New York.