OregonFlora species comparison

sheaths glabrous or with scattered hairs;

blades 1–6(16)cm × (1)2–4(5)mm; flat or folded, glabrous or upper adaxial surface with spreading hairs.

sheaths open, ligules of hairs or membranous;

blades flat, folded, or involute.

with 1 whorl of (3)4–7(9) spike-like branches 1.4–6 cm × 1–2 mm;

spikelets in 2 rows on one side of each branch.

panicles with spike-like branches attached at approximately the same point like spokes of an umbrella;

branches 1-sided, with 2 rows of solitary, appressed, overlapping spikelets.

2–3.2 mm.

laterally compressed, with 1(3) florets (if more than one, only the lowest fertile);

disarticulation above the glumes.

1-veined;

lower glumes 1.2–2 mm;

upper glumes 1.4–2.3 mm.

shorter than the lemmas, keeled, 1-veined or the upper sometimes 3-veined, sometimes short-awned.

1.9–3.1 mm, 3-veined, usually densely pubescent on the keel, sometimes pubescent on the margins; awnless.

keeled, sometimes winged;

tip pointed.

about 1 mm, dehiscent.

3.

=36.