Sporobolus humilis

HABIT Perennial; caespitose. Culms geniculately ascending; 5–30 cm long. Culm-internodes distally glabrous. Leaves mostly basal. Leaf-sheaths striately veined; glabrous on surface. Ligule a fringe of hairs. Leaf-blades 2–3 cm long; 1–2 mm wide. Leaf-blade surface pilose.

INFLORESCENCE Inflorescence a panicle.

Panicle spiciform; linear; 3–6 cm long; 0.4–0.7 cm wide. Primary panicle branches appressed; 0.8–1.2 cm long. Panicle axis glabrous.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets oblong; subterete; 1–1.2 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes similar; shorter than spikelet. Lower glume lanceolate; 0.4–0.5 mm long; 0.5 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 0.8–0.9 mm long; 0.75 length of adjacent fertile lemma; membranous; without keels; 1 -veined. Upper glume lateral veins absent. Upper glume apex acute.

FLORETS Fertile lemma lanceolate; 1–1.2 mm long; membranous; without keel; 1 -veined. Lemma apex acute. Palea 0.9–1 mm long; 2 -veined. Palea keels approximate.

FRUIT Caryopsis with free soft pericarp; ovoid; 0.7–0.8 mm long; yellow.

DISTRIBUTION Asia-tropical: Indo-China and Malesia.

NOTES Eragrostideae. Fl Indo-Chine 1997.

Please cite this publication as detailed in How to Cite Version: 3rd February 2016.