OregonFlora species comparison

erect, glabrous.

erect to decumbent, sometimes with a ring of glandular tissue below the nodes.

mostly basal;

sheaths with scattered hairs to 9 mm;

blades 12–50(65) cm × 1–3 mm.

sheaths sometimes glandular on the midveins; tops with hairs to 4 mm;

blades 1.5– 10 cm × 1–3(4)mm;

margins sometimes with saucer-like glands.

16–35(40) × (4)8– 24 cm; ovate to oblong; open;

primary branches 3–14 cm, diverging 10–80° from the inflorescence axis;

pedicels 0.5–5 mm, appressed; flexible;

disarticulation irregular or acropetal;

basal rachilla internodes persistent.

4–20 × 2.2–8(10)cm; ovate; open to contracted;

rachises sometimes with glandular spots or pits below the nodes or rarely with a glandular ring;

glands usually dull; greenish gray to straw-colored;

primary branches 0.5–6 cm, diverging 20–100° from the inflorescence axis;

pedicels 1–4 mm; stiff; straight, divergent, usually with a distal ring of saucer-like glands;

disarticulation acropetal;

paleas persistent.

4–8.2(10) × 1.2–2 mm, gray to yellowish, with 3–10 florets.

4–7(11) × 1.1–2.2 mm, mostly reddish purple to greenish to occasionally grayish, 7–12(20) florets.

lanceolate; hyaline;

lower glumes 1.2–2.6 mm;

upper glumes 2–3 mm.

broadly ovate, membranous;

lower glumes 0.9–1.4 mm;

upper glumes 1.2–1.6 mm.

1–1.7 mm, ellipsoid to obovoid, dorsally compressed, with or without a shallow; broad groove.

0.4–0.7 mm, ellipsoid, not grooved.

1.8–3 mm; ovate, membranous;

lateral veins conspicuous;

tips acute.

1.4–1.8 mm, broadly ovate, membranous;

keels occasionally with 1–2 saucer-like glands;

tips acute to obtuse.

1.8–3 mm; hyaline to membranous, obtuse.

1.3– 1.7 mm; hyaline;

keels smooth or minutely scabrous.

3, 0.6–1.2 mm; reddish brown.

2, 0.2–0.3 mm; reddish brown.

=40, 60, 80.

=40.