ESE" 
} C. palousense Piper. > Stems ersct, branch 
tall, more or less cobwebby; lower leaves oblanesolaea Ieeae sean, ugha 
tapering to a petiole half as long as the blade, the stem leaves aseaiis } 
and clasping, broadly lanceolate or oblanceolatey below, deeply pinnatiti® the 
lobes narrowly oblong-lanceolate, simple or again Sparingly lobed toward the 
base, the upper narrowly oblong-lanceolate, their lobes mostly deltoid, all 
spinose with weak spines 2-4 mn. long, the margins armed with smaller prickl 
the upper surfaces cobwebby, becoming more or less glabrate, at least a th 7a 
lower parts, the lower surface persistently white-tomentose: heads borne . 
tips of slender branches, globose in outline, 3-3.5 om. broad their inv i = 
bracts lanceolate, the inner 25-28 mm. long, all except the inner reithi Stats 
with spreading spines 2-3 mm. long, the inner soft and recurving at the ti 
all strongly cobwebby, especially towards the base of the involucre, beari “i 
a glandular ridge 5-4 mm. long near the apex; flowers cCream-color. Fe Be 
Frequent along roadways in the grassland. 
. | 
(S)> Ce foliostm (Hook.) DC. —~ -—> Stems stout, unbranched, virgate, 
~ 40-80 cm. tall, leafy, thinly woolly; lower leaves narrowly oblanceolate, 
15-25 cm. long, tapering to indefinite petioles, the upper narrowly oblong or 
linear, gradually diminished upwards, sessile, pinnately lobed, the lobes 
qd irregularly deltoid, 3-12 mn. tall, spinose, the margins undulate, armed with 
numerous weaker unequal spines, both surfaces thinly woolly with hairs 5-8 
mm. long, the lower frequently somewhat cobwebby as well; heads few in a dense 
terminal cluster subtended by and almost hidden with a leafy cluster, the leaves 
of which are purplish-red beneath, giving a characteristic aspect to the plant; 
bracts of the involucre lanceolate, the inner 18-20 mme long, dilated at the 
tip into a flattened, lacerate appendad#e 2-5 mme broad, the outer tipped with ; 
weak spines 1-2 mm. long; corolla 2.5-4.8 cm. long, whitish, the lobes 5 mm. | 
long, anthers and style rose-purple; aghenes 445-5 mm. long. 
Common in meadows at low eleva throughout our region. 
‘4 
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