SUNFLOWER FAMILY 579 
_ bright yellow, about 1 cm. hg achenes with 5 prominent ribs and 2 finer ones in the 
rvals ; ibe fete all — 
andy o avelly slopes and w vdesanh Zones; desert a of Inyo and San Bernardino Counties, 
California, oe pt ramen oe Great a region to western Nebraska. Type locality: ‘“‘The plains of the Platte. a 
pri 
9. Malacothrix torreyiA. eey. amet Malacothrix. Fig. 6003. 
Malacothrix torreyi A. Gray, Proc. Amer. Acad. 9 
Malacothrix sonchoides var. torreyi E. Williams, Anas wea Nat. 58: 5030 1957: 
Annual, the stems simple below and erect or often branched at base and somewhat decumbent, 
10-30 cm. high, herbage glabrous or usually spar quit puberulent with gland-t ipped hairs. Leaves 
2-6 cm. long, pinnatifid, the lobes divergent or run hg lower wing-petioled, 3 ee 
several to many, sessile or nearly bis with the lobes ent oothed ; heads ee pan ye gh seink 
slender peduncles ; involcre 7- m. high, the phyllaries ahr e, 16-20; r ligu gai ges 
ong; achenes about 4 m tee nen + DET keeled on the angles, aris ecun: sak 
sistent pappus-bristles 2- 5, white, 6-7 mm. long. 
Sandy or gravelly places, ae ‘Arid esac Zone; southeastern Oregon in Harney and Malheur Coun- 
ties, east to Idaho and Utah, and south to Nevada. Type locality : Salt Lake City, Utah. May-July. 
10. Malacothrix incana ( Nutt.) Torr. & Gray. Dune Malacothrix. Fig. 6004. 
Malacomeris incanus Nutt. Trans. Amer. Phil. Soc. II. 7: 435, 1841. 
Malacothrix incana Torr. & Gray, Fl. N. Amer. 2: 486. 1843 
Perennial with a gi rather deep-seated root, ee whole plant more or less densely white- 
woolly capectills when young, the stems branching from the root-crown, short and stout, forming 
tufts or mats, or Sreiches elongate, 2-3 dm. long, iti decumbent. Leaves spatulate, entire or some 
ating 
\ 
5999 
) 6000 
6001. 
6002. Malacothrix sonchoides 
