BOTANY OF LA SALLE COUNTY. 127 



leaf -like, longer than stem. 

 C. granula ris. Pale colored; 8 to 24 in.; bracts 



broad, spreading. 

 C. fla va. Very slender, stiff, straight, yellowish, 



1 to 2 ft. 



C. fla va var. viridu la. C. Oedere of 5th Ed. 

 C. f la va var. latifolia. Leaves broader, bracts 



very broad. 

 C. laxiflo ra. Slender; leaves soft, one-sixth inch 



or less wide. 

 C. platyphyl la. Low, 6 to 12 in., leaves ^ in. 



wide, 1 ft. long. 



C. plantagin ea. Leaves broader; dark G. Canyons. 

 C. va ria. In tufts with runners, 6 to 15 in. Spikes 



G. Woods. 



C. Pennsylvan ica. Small, 6 to 10 in. Spikes Br. 

 C. pubes cens. Straight, 1 to 2 ft. soft-woolly. 

 C. stipa ta. Stout, 1 to 3 ft., sharp angled; in 



clumps. 



C. decompos ita. Nearly round, 1^ to 3 ft.. deepG. 

 C. teretius cula. Slender, obtuse angled, rough 



at top. 



C. vulpinoid ea. Rather stiff, rough, at least above. 

 C. Sartwel Hi. Leaves flat, with long, slender 



points. 



C. ros ea. Slender, weak, erect, 1 to 1^ ft. 

 C. sparganioi des. Stout, stiff, 2 to 3 ft.; leaves 



y in. wide, 



C. cephaloph ora, Erect, paleG.; leaves narrow. 

 C. Deweya na. Leaves flat, soft, shorter than 



stem. 



C. bromoi des. Weak, in dense clusters. 

 C. sicca ta. Has creeping as well as erect stems. 

 C. scopa ria. Head short, thick, tawny or Br. 

 C. adusta. In dense tufts; heads heavy, silver Br. 



