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CREPIS COMPOSIT 397 
below to short petioles, or the cauline sessile, villous-crinite and tomen- 
tose-canescent both sides: heads rather numerous, in an open panicle few- 
flowered : involucre about 5 lines high cylindrical of 6-8 linear-lanceolate 
obtuse principal bracts and a few shorter ones at their base, all hoary with 
close stellular pubescence, without any setose bristles: pappus white when 
young. Open Rocky ridges, Mooney Mountain, Josephine county, Oregon. 
106 CREPIS L. Gen. n. 9. 14. 
Perennial or annual herbs with alternate or all radical mostly 
toothed or pinnatifid leaves and small or middle-sized heads of 
yellow flowers. Involucre few- to many-flowered, cylindric, cam- 
panulate, or swollen at base, its principal bracts in one series, 
equal, with a number of exterior smaller ones. Receptacle mostly 
flat, naked or short-fimbrillate. Achenes from columnar to fusi- 
form, 10-20-ribbed or nerved, not transversely rugose, narrowed 
at the base and apex. Pappus of copious white and usually soft 
capillary bristles. 
* Bracts of theinvolucre thickening and becoming more or less 
rigid at base in age: achenes beakless or nearly so. 
C. virens L. Sp. ed. 2, 1134. Glabrous annual; stems leafy 1-2 feet 
high corymbosely branched above: radical leaves spatulate to lanceolate, 
from dentate to laciniate pinnatifid, 2-8 inches long, narrowed below to 
petioles: cauline smaller and narrower, clasping by a sagittate base the 
upper usnally very small and entire: heads numerous, slender-peduncled : 
involucre 4-5 lines high, oblong, more or less pubescent or glandular, its 
principal bracts lanceolate, the outer mostly appressed achenes oblong, 
10-striate, smooth slightly contracted at both ends. In fields and waste 
places, British Columbia to California. Naturalized from Europe. 
* * Perennials: achenes beakless or short-beaked. 
C. nana Richards, App. Franklin Journ. ed. 2, 62. Glaucescent and 
wholly glabrous: low and depressed, forming tufts and bearing numerous 
clustered and narrow short peduncled heads: leaves chiefly radical, ob- 
ovate to spatulate, entire, repand-dentate or lyrate, commonly equalling 
the clustered scapes or stems: involucre cylindrical 8-14 flowered, of 8-10 
smooth and narrowly linear obtuse bracts in a single series and 3 or 4short 
calyculate ones at base: achenes linear, unequally costate, obscurely con- 
tracted under the moderately dilated pappiferous disk. Alaska to the 
Wallowa Mountains of Oregon and to California. 
C. runcinata T. € G. FI. ii, 488, Slightly if at all glaucous: stems 
scape-like, 1-3 feet high, paniculately brancbed above: radical leaves ob- 
ovate-oblong to oblong-lanceolate, 2-6 inches long, from repand-dentate to 
runc nate-pinnatifid, with short lobes or teeth; cauline none or small and 
narrow at the forks: involucre half-inch high or less, pubescent, often hir- 
sute, sometimes glandular-hispidulous: achenes narrowly oblong, moder- 
ately narrowed upward, somewhat evenly 10-costate. In moist soil, south- 
eastern Oregon to Manitoba and Iowa. 
Var. hispidulosa. whole plant hispidulous and glandular. Moist 
places, southeastern Oregon. 
C. Andersoni Gray Proc. Am. Acad. vi, 436. ‘* Not glaucous, a foot 
or more high: leaves laciniately pinnatifid or dentate, but not runcinate: 
involucre half to three-fourths inch high, cinereous-pubescent, of broader 
and firmer bracts, more imbricated, outermost oblong: to ovate-lanceolate : 
achenes fusiform, usually 8-10-costate, tapering into a short but manifest 
beak. ’’ Eastern Oregon to Nevada and eastern California. 
