¥3° Saussurea Dé. 
Perennial herbs with alternate Sharply denticulate leaves. Heads discoid, 
few, borne in terminal commonly flat-topped Cymese Involucres top-shaped, con- 
Sisting of several series of closely overlapping somewhat chaffy bracts; 
receptacle flat, sparingly chaffy with stiffish subulate bracts. Flowers 
bluish-violet. Achenes narrowly cuneiform, angled, crowned with a double row 
of pappus-bristles, the outer short, unequal, merely barbed, the inner several 
times longer, plunose. 
le. Se americana D.C. Baton. —— > 
Stems erect, 80-150 om. tall, thinly 
cobwebby; basal leaves ovate, their blades 10-12 om. long, 4-6 cm. wide, trun- 
cate or subcordate at the base, obtuse, borne on winged petioles 2-3 em. long, 
4-6 cm. wide, truncate or subcordate at the base, obtuse, borne on winged 
petioles 2-5 cm. long, the upper leaves Sees ne lanceolate, acute, 
cuneate at the base and sessile, the margins of all very sharply sinuate-denti- 
culate, the lower surfaces more or less cobwebby; bracts of the involucre in 4=5 
series, the outermost 3 mm. long, broadly ovate, the immermost oblong or oblanceo- 
late, 8-9 mm. long, all ciliate towards the tips and somewhat cobwebby; flowers 
blue-violet, their corollas 10-11 mm. long; achenes 3.5 mm. long, glabrous, the 
pappus buff-color. 
Common in subalpine meadows and along subalpine streams throughout our 
regione 
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