Description

Key Characters:

Growth Form: Plants perennial, cespitose, up to 60–70 cm tall.

Stems: Culms with conspicuous brownish cataphylls, brownish, scabrous below panicle.

Roots: Roots fibrous.

Leaves: Leaves simple. Alternate. Blades of vegetative shoots approximately 34 cm x 2 mm, more or less pendant, flat. Lower surfaces glabrous and smooth, hirsute along protruding ribs adaxially and on margins and apex, dull green. Margins involute. Veins parallel, with 25 larger vascular veins, each with prominent ribs adaxially alternating with smaller ribs on the secondary and tertiary veins. Sheaths with margins fused for 1-2 mm at base, overlapping more than 1/2 the length below, purple-brownish at the base, greenish above, becoming fibrous at base in age; auricles absent; collars glabrous; ligules 1.5-2.5 mm long, scarious, glabrous, browni Stipules absent.

Flowers: Panicles 8.5-13 x 4 cm, loosely contracted with approximately 75 spikelets, spikelets located at the ends of the branches, 3(4) branches on basal node, 2(3) branches in other nodes, axis and branches strongly scabrous; basal branches as long as 7 cm, more than 1/2 the length of the panicle, angled, suberect to ascending. Spikelets 7-9 x 3-4 mm, 5-6-flowered, broadly lanceolate, pale green; pedicels (2-) 4(-9) mm long; rachilla internodes scabrous; glumes lanceolate, green, margins very narrow, scarious, apex acute; lower glumes (5.0-)5.2-5.5(-5.7) mm long, 1-veined; upper glumes (6.0-)6.2-6.8(-7.0) mm long, 3-veined Lemmas (5.0-)5.5-6.0 mm long, 5-veined, scabrous dorsally and near apex, green, awn 1.5-2.5 mm long, scabrous; paleas slightly shorter than lemma, bidentate at apex, keels scabrous, between keels scabrous. Stamens 3, anthers 2.8-3.0 mm long. Ovary superior, densely hairy on upper 1/3.

Fruit: Fruit a caryopsis.

Ploidy:

Habitat:

Elevation Range: