Description

Key Characters:

Growth Form: Perennial, cespitose grasses, 45–70 cm.

Stems: Culms erect, slender (ca. 1 mm diam.).

Roots: Roots fibrous.

Leaves: Leaves simple. Alternate. Bades of vegetative shoots 22-33 cm x (1- )1.5- 1.7 mm, erect to pendant. Lower surfaces glabrous and smooth, hirsute along protruding ribs adaxially, the hairs up to 0.1 mm long. Margins involute. Veins parallel. Blade with 13-16(-20) larger vascular traces or veins, each with prominent ribs adaxially alternating with smaller ribs on the secondary and tertiary veins. Sheath margins fused for 1-2 mm at base, overlapping more than 1/2 the length below, sparsely villose abaxially when young, becoming glabrous at maturity, purple-brownish at the base, greenish above, becoming fibrous in age at base; auricles absent; colla Stipules absent.

Flowers: Panicles 8-11 x 2.5-4 cm, erect, axis and peduncle smooth; loosely contracted with 34-66 spikelets, spikelets mostly at branch tips; panicle branches 2(3) per node, basal branches 4-6 cm and ca. 1/2 the length of panicle, angled, erect or ascending, smooth proximally to scabrous, angled dis tally. Spikelets 8.2-13 mm x 3.5-6.0 mm, 4-6-flowered, broadly lanceolate, pale green, sometimes tinged with purple; pedicels (1-)1.5-3.5(-5) mm long; rachilla internodes 0.8-1.2 mm long, scabrous; glumes lanceolate, green, margins very narrowly scarious (<0.5 mm), apex acute; lower glumes (3.6-)3.9-4.2(-4.5) mm long, 1-veined; upper glumes 5.2-5.5(-6.0) mm long, 3-veined. Lemmas 5.8-8.0 mm long, 5-veined, glabrous below, scabrous near the apex, green or tinged with purple at the apex, mucronate to awned, the mucro or awn 0.5-1.1 mm long, scabrous; Paleas longer or shorter than lemma, scabrous on and between keels. Stamens 3, anthers 3.1-4.2 mm long. Ovary superior, densely hairy on upper 1/3.

Fruit: Fruit a caryopsis

Ploidy:

Habitat:

Elevation Range: