Spike-oat - Helictotrichon hookeri
Other Names:
Avenula hookeri
Native Species
Global Rank:
G5
State Rank:
S4
C-value:
5
Agency Status
USFWS:
USFS:
BLM:
External Links
Cool season, perennial bunchgrass Stems 20–40 cm. Leaves: ascending, the larger blades (2-)3–4 mm wide, flat to folded along midrib; sheaths with overlapping margins; ligule membranous. Inflorescence a contracted panicle 2–11 cm long. Spikelets 11–15 mm long with mostly 3 to 6 florets; glumes nearly enclosing the florets. Lemmas 3–5 mm long, uniformly awned from the middle, the awns twisted and bent; palea well developed. Disarticulation above glumes; unit of dispersal the floret (Lavin in
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Northern plains and middle to high elevation montane meadows and open understory (Lavin in
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).