GENUS 21. 



CHICORY FAMILY. 



3 2 7 



5. Crepis capillaris (L.) Wallr. Smooth Hawksbeard. Fig. 4090. 



Lapsana capillaris L. Sp. PI. 812. 1753. 

 Crepis virens L. Sp. PI. Ed. 2, 1134. 1763. 

 Crepis polymorpha Wallr. Sched. Crit. 426. 1822. 

 Crepis capillaris Wallr. Fl. Hereyn. 287. 1840. 



Annual ; stem stout or slender, leafy, corym- 

 bosely branched above, glabrous or somewhat 

 hirsute below, i-2i high. Basal leaves spatu- 

 late, pinnatifid, or dentate, sometimes 8' long and 

 2' wide, narrowed into petioles ; stem leaves lan- 

 ceolate or oblong, clasping by a sagittate base, 

 flat, the upper mostly very small and usually en- 

 tire ; heads numerous, 5"-8" broad, slender-pedun- 

 cled; peduncles glabrous or glandular; involucre 

 oblong, more or less pubescent or glandular, 3"-4" 

 high, its principal bracts lanceolate, glabrous 

 within, the outer mostly appressed ; achenes 10- 

 ribbed, smooth, slightly narrowed at both ends. 



In fields and waste places, Connecticut, New York, 

 New Jersey and Pennsylvania, and in ballast about 

 the seaports. Also on the Pacific Coast. Adventive 

 from Europe. July-Sept. 



6. Crepis biennis L. Rough Hawksbeard. 

 Fig. 4091. 



Crepis biennis L. Sp. PI. 807. 1753. 



Biennial, or sometimes annual ; stem pubescent 

 or hirsute, leafy, at least below, branched above, 

 2-3 high. Leaves runcinate-pinnatifid, usually 

 hirsute, 2'-6' long, oblong or spatulate, the lower 

 and basal ones narrowed into petioles and some- 

 times merely dentate, the uppermost lanceolate, 

 clasping, their margins not revolute ; heads sev- 

 eral, subcorymbose, I'-ii' broad; involucre canes- 

 cent or pubescent, 4"-6" high, its principal bracts 

 linear-lanceolate, downy within, the outer ones 

 linear-oblong or lanceolate, spreading ; achenes 

 oblong, slightly narrowed above, 13-striate, gla- 

 brous. 



In waste places, Vermont to Pennsylvania, Mich- 

 igan, and in ballast about the seaports. Naturalized 

 or adventive from Europe. June-Aug. 



7. Crepis intermedia A. Gray. Small-flowered 

 Gray Hawksbeard. Fig. 4092. 



Crepis intermedia A. Gray, Syn. Fl. i : Part 2, 432. 1884. 



Perennial, cinerous-puberulent or scurfy; stem rather 

 slender, i-3-leaved, i-2 high, naked and branched 

 above. Basal leaves lanceolate or oblong-lanceolate, 

 laciniate-pinnatifid, long-acuminate at the apex, nar- 

 rowed at the base, 4'-6' long; stem leaves lanceolate, 

 sessile, less divided ; heads several, 6"-o/' broad, 5-8- 

 flowered; involucre oblong-campanulate, its principal 

 bracts 5-8, lanceolate or linear-oblong, canescent, acut- 

 ish, somewhat keeled by the thickened midrib when old, 

 the outer ones few and short ; achenes oblong, narrowed 

 above, not beaked, strongly 10-ribbed. 



In dry soil, western Nebraska (according to Williams) ; 

 Colorado to California, Montana and British Columbia. 

 May-Sept. 



