2. Cyperus Le 
Horbs with triangular stems which are leafy at the base and bear one or more 
leaves toward the SUMRELE 9 Re PEOHEINE the inflorescence, Flowers perfect, in 
unequal umbels, one of the clusters usually being sessile. Spikelets laterally 
flattened, the scales which subtend the flowers either deciduous or persistent, 
concave, arranged in two rankse Bristles none, Stamens 1-3, Style 2-3 cleft, 
Fruit an ovoid achene, 
1, C, inflexus Iiuhl. ——>A low annual 3-15 cm, tall, the stems numerous, tufted; 
basal leaves gubequal to the stems, 1-2,5 mm, wide, tapering gradually, very acute, 
those of the involucre similar, 1-4 cm. long, exceeding the flower clusters; 
umbels with 3-5 unequal rays, the remaining rays .1-3 om. long; spikelets laterally 
flattened, 5-10 mm, long, 10-20 flowered, the scales 1.5- 3 mn. long, deciduous 
at maturity, acuminate into a recurving rather rigid awn, strongly veined with 
usually 9 parallel veins; achenes 1.5 mm, long, obovate rounded=truncate at the 
ADEX.» 
Muddy places, Kootenai Coe, Leiberg 3003; Spokane R., Geyer 455; Rathdrun, 
Sandberg 719, 
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