Species: Achnatherum thurberianum
Encyclopedia of Puget Sound
Thurber's Needlegrass is tufted grass 20-70 cm tall arising from fibrous roots. The leaves are 1-2.2 mm broad but strongly involute, and the membranous ligule is 2-5 mm long, acute to truncate. The panicle is 7-13 cm long, usually erect, with glumes 9-14 mm long, and equal or subequal. The awn is twice geniculate, over 10 cm long, and with hairs 1-2 mm long on all but the terminal segment.
Classification
Monocotyledoneae
Cyperales
Poaceae
Achnatherum
NatureServe
Classification
Ecology and Life History
Thurber's Needlegrass is tufted grass 20-70 cm tall arising from fibrous roots. The leaves are 1-2.2 mm broad but strongly involute, and the membranous ligule is 2-5 mm long, acute to truncate. The panicle is 7-13 cm long, usually erect, with glumes 9-14 mm long, and equal or subequal. The awn is twice geniculate, over 10 cm long, and with hairs 1-2 mm long on all but the terminal segment.