Orcuttia pilosa
Illustrator:
Copyright:
Plants cespitose, hairy, usually densely so. Culms 5-20(35) cm tall, 1-2 mm thick, simple or branching at the lower nodes, erect or decumbent, sometimes geniculate. Leaves with a faint "collar" line usually evident when dry; blades 4-6 cm long, 3-5(8) mm wide. Spikes to 10 cm; lower internodes 5-15 mm; upper internodes 1.5-3 mm. Spikelets with 10-40 florets. Glumes about 3 mm, irregularly 3-toothed; lemmas 4-5 mm, teeth about equal and 1/3–1/2 as long as the lemmas, acute or awn-tipped; anthers 2.5-3 mm. Caryopses about 2 mm, elliptical; embryos 3/4 or more as long as the caryopses. 2n = 30.
Discussion
Orcuttia pilosa grows at elevations below 150 m in Madera, Merced, Stanislaus, and Tehama counties, California. It is listed as an endangered species by the U.S. Fish and Wildlife Service.
Selected References
None.