OregonFlora species comparison

sheaths glabrous or minutely scabrous;

blades flat, 5–17 cm × 4–9 mm, glabrous or scabrous over the veins;

tips with short points or with awns to 4.5 mm; uppermost culm blades 1.5–7 cm.

racemes 13–20 cm × 10–33 mm, 6–7 spikelets that are ascending to erect at maturity.

20–40(50)mm, 7–14 florets, ascending; lower florets bisexual; upper florets pistillate; terminal floret usually sterile.

lanceolate to ovate; acute; erose;

lower glumes 2–3 mm;

upper glumes 2.5–4.5 mm.

2.5–3 mm.

4.5– 7 mm, 7-veined;

tips truncate; awns 5–12 mm.

keels each with an awn 3–9 mm, arising 33–50% above the base.

approximately 4 mm.