COMPOSITE. (COMPOSITE FAMILY.) 211 



linear, entire or pinnatifid: heads rather numerous and crowded in the cyme, 

 rather small : ovaries papillose-hispid ulous on the angles Synopt. Fl. i. 391. 

 From Colorado to N. W. Texas ; mostly in saline soil. 



Var. borealis, Torr &. Gray. A foot down to a span high, at summit 

 bearing either numerous or few heads ; these not rarely rayless : leaves thick- 

 ish ; radical, from roundish with abrupt or even truncate base to cuneate-obovate 

 and cuneate-spatulate, % to 1 inch long, slender-petioled ; cauline seldom much 

 pinnatifid : akenes glabrous. Mountains of Colorado, California, and north- 

 ward, where it extends across the continent. 



Var. croceus, Gray. A span to a foot or two high, glabrous or early 

 glabrate : leaves somewhat succulent ; radical oblong to roundish, sometimes 

 It/rate ; cauline very various : heads usually numerous in the cyme : flowers 

 saffron-colored or orange, at least the ravs, or these sometimes wanting. 

 Proc. Acad. Philacl. 1863, 68. Mountains of Colorado to Montana, Nevada, 

 and California. 



Var. subnudus, Gray. Wholly glabrous or glabrate, slender, a span or 

 two high, bearing 2 or 3 small cauline leaves and a solitary head, or riot rarely a 

 pair: radical leaves few, spatulate or obovate, sometimes roundish, half-inch 

 or less long, occasionally lyrate ; cauliue incised or sparingly pinnatifid : rays 

 conspicuous. Synopt. Fl. i. 391. Wyoming to British Columbia and Cali- 

 fornia. 



19. S. Fendleri, Gray. Very canescent with floccose wool, in age tardily 

 glabrate: stems rather stout, 5 to 15 inches high, leafy, the larger plants 

 branching : leaves oblong-lanceolate or narrower ; radical sometimes almost entire, 

 more commonly like the cauline sinuatelij pectinate-pinnatijid or even pinnately 

 parted, the short oblong divisions incisely 2 to 4-lobed : akenes glabrous. PI. 

 Fendl. 108. Mountains of Colorado and New Mexico. 



2. Leaves mostly once pinnately divided or parted and again lobed or incised. 



20. S. eremophilus, Richards. Stems freely branching, leafy up to the 

 inflorescence: leaves mostly oblong in outline, laciniately-pinnatifid or pin- 

 nately parted, the lobes usually incised or dentate : heads in corymbiform 

 cymes, short-ped uncled : bracts commonly purple-tipped : rays 7 to 9 : akenes 

 minutely papillose or glabrous. In the Rocky Mountains, from New Mexico 

 to the Mackenzie River. 



-M. -M. .w 4H- Stems leaf i/, numerously or somewhat equably so up to the top: leaves 

 all pinnately lobed or parted or entire, their divisions (or the whole leaf) linear 

 to filiform. 



21. S. Douglasii, DC. Lignescent and sometimes decidedly shrubby 

 at base, many-stemmed, a foot or two or even 5 or 6 feet high, either white- 

 tomentose or glabrate and green : leaves thickish, sometimes all entire and 

 elongated-linear, more commonly pinnately parted into 3 to 7 linear or nearly 

 filiform entire divisions : heads several or numerous and cymose, from | to 

 inch high : rays 8 to 18 : akenes canescent with a fine strigulose pubescence. 

 S. longilobiis, Benth. ; S. filifolius, Nutt. Plains and hills, Nebraska to Texas 

 and westward to California. 



