13. Pe Cusickii Vaseye ——____->Culms erect or ascending from a densely 
tufted base, 20-50 cm. tall; sheaths smooth or scabrous; leaves mostly basalf the 
blades filiform or very narrow, scabrous, those of the innovations as much as 
20 come long; panicles long-exserted, dense, the branches stiff and appressed to 
slender and flexuous, 5-10 cm. long; glumes lanceolate or acuminate, the first 
3-4 mme, the second 4-5 mm., long; lemmas lanceolate, or acuminate, often sub- 
aristate, smooth or scabrous, about 5 mne long. 
Rocky slopes. Clearwater Cr, near Lewiston; Hatwai Cr, Nez Perces COey 
Sandberg 158. ‘his species is very variable but cannot be satisfactorily > 
separated into distinct species, The form found in our region has lax open 
panicles, and the lemmas are smooth or nearly so, not subaristate, This has 
been named Poa filifolia Vasey. (Type, Sandberg ,138),5 
14. P. bulbosa L. —?Culms densely tufted, erect from a bulbous base, 20-60 cm. 
tall; ligules 2-4 mm. long; basal blades smooth and lax, filiform, those of the 
culm rather firm, smooth or scabrous, 2-5 mm. long, 1-2 mm. wide; panicles narrow 
but open, contracting when mature, 5-10 cm. long, appearing bushy from the leaf 
blades of the bulblets formed on the spikelets. 
Fields and waste places, introduced from Hurope.e. In Oregon where it has 
become established, it provides excellent pasture and is also cut for Lh 2 ea of 
wwe uoscow, Gail in 1927. 
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