Urochloa glumaris

HABIT Annual. Culms erect, or geniculately ascending; 15–40 cm long. Culm-nodes bearded. Leaf-sheaths outer margin hairy. Ligule a fringe of hairs. Leaf-blades 5–20 cm long; 3–8 mm wide. Leaf-blade surface scaberulous; pilose. Leaf-blade margins scabrous.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 3–4; borne along a central axis; unilateral; 2.5–6 cm long. Central inflorescence axis 2–9 cm long. Rhachis wingless; angular; ciliate on margins. Spikelet packing abaxial; lax; irregular; 1–2 -rowed.

Spikelets solitary, or in pairs. Fertile spikelets sessile and pedicelled. Pedicels pubescent.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; compressed moderately; symmetrical; acute; 3.5–4 mm long; falling entire.

GLUMES Glumes similar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.75–0.8 length of spikelet; membranous; without keels; 5 -veined. Lower glume apex acute. Upper glume elliptic; 1 length of spikelet; membranous; without keels; 7 -veined. Upper glume apex acute.

FLORETS Basal sterile florets barren; with palea, or without significant palea. Lemma of lower sterile floret similar to upper glume; elliptic; 1 length of spikelet; membranous; 5 -veined; acute. Fertile lemma elliptic; dorsally compressed; 3–3.5 mm long; indurate; without keel; 5 -veined. Lemma surface rugulose. Lemma margins involute. Lemma apex obtuse; mucronate. Principal lemma awn 0.5 mm long overall. Palea indurate.

DISTRIBUTION Africa: western Indian ocean. Asia-temperate: China and eastern Asia. Asia-tropical: India, Indo-China, Malesia, and Papuasia. Pacific: southwestern, south-central, and northwestern.

NOTES Paniceae. WDC.

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