OregonFlora species comparison

ligules 1–3(7.5)mm; dorsal surfaces scabrous, membranous;

blades 2–12 cm × 2–10 mm; flat; upper blades wider than lower blades.

ligules 1.2–6.3 mm, truncate to rounded; erose-lacerate;

blades 10–30 cm × (1)2–5 mm; flat.

2–10 × 0.5– 2 cm; narrow; dense; ellow-green, sometimes tinged with purple, bases often enclosed in the upper sheaths at maturity;

branches appressed; to 1.5 cm, mostly hidden by the spikelets.

8–35(70) × (1.5)2.5–20 cm, usually 3 times longer than wide; open; lowest node with 1–15 branches, usually dark red or purple;

branches ascending;

spikelets somewhat clustered toward the branch tips; lower branches 2–10 cm;

primary branches branched above mid-length.

2–3.3 mm, 1-veined, densely scabrous over the back, strongly scabrous on the veins;

tips narrowly acute to acuminate or mucronate.

2–3.6 mm, 1(3)-veined, scabrous on the midvein, occasionally minutely scabrous over the body; acute to acuminate.

hairs to 0.3 mm; the hairs usually dense.

with sparse hairs to 0.2 mm.

1.5–2.1 mm; (3)5-veined;

veins extended as teeth to 0.3 mm;

tips acute to obtuse, sometimes toothed; awnless or awned;

lemma awns 0–3.5 mm, arising from above mid-length; straight, readily falling off.

1.5–2.5 mm, usually smooth, sometimes minutely scabrous or pubescent, 5-veined;

veins sometimes extended into teeth to 0.4 mm;

tips acute to obtuse, usually entire to toothed, usually awnless but sometimes with awned and awnless spikelets on the same plant;

lemma awns 0–2 mm, arising from about mid-length; straight (rarely bent), not exserted.

(0.3)0.5–0.7 mm.

absent or to 0.2 mm and thin.

0.3–0.7 mm.

0.5–1.2 mm.

=42.