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GrassBase - The Online World Grass Flora
Descriptions
W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson
© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
Eremochloa pectinata
HABIT Perennial. Cataphylls evident (ciliate). Rhizomes elongated. Basal innovations extravaginal. Culms 35–65 cm long. Culm-internodes hollow, or solid; distally glabrous. Culm-nodes glabrous, or pubescent. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 0.5–0.9 mm long. Leaf-blades flat, or conduplicate; 2–20 cm long; 2–5 mm wide. Leaf-blade surface glabrous, or pilose. Leaf-blade margins glabrous, or ciliate; hairy at base. Leaf-blade apex abruptly acute.
INFLORESCENCE Inflorescence composed of racemes.
Racemes 1–2; single, or paired; straight; unilateral; 7–35 cm long. Rhachis fragile at the nodes; angular; glabrous on surface; glabrous on margins. Rhachis internodes clavate; 2.9–4.7 mm long; 0.6–0.9 length of fertile spikelet.
Spikelets appressed; in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Pedicels narrowly elliptic; foliaceous; 2.8–5 mm long; 0.95–1.25 length of fertile spikelet.
STERILE SPIKELETS Companion sterile spikelets represented by awns; comprising 1 awn; 1.3–3 mm long.
FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate, or obovate; dorsally compressed; compressed strongly; 4.5–5.5 mm long; 1.6–2.2 mm wide; falling entire; deciduous with accessory branch structures. Spikelet callus base truncate.
GLUMES Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume ovate; 1 length of spikelet; coriaceous; 2-keeled; wingless; 5–7 -veined. Lower glume primary vein pectinately spinose. Lower glume lateral veins transversely connected at apex. Lower glume surface flat; glabrous, or puberulous. Lower glume apex acute. Upper glume ovate; 1 length of spikelet; chartaceous; 1-keeled; 3 -veined. Upper glume lateral veins transversely connected at apex. Upper glume surface glabrous. Upper glume apex acute.
FLORETS Basal sterile florets male; with palea. Lemma of lower sterile floret ovate; hyaline. Fertile lemma ovate; hyaline; without keel. Palea hyaline.
FLOWER Anthers 3; 1.4–2.5 mm long.
FRUIT Caryopsis ellipsoid.
DISTRIBUTION Asia-tropical: India.
NOTES Andropogoneae. Buitenhuis 2003.
ADDITIONAL CHARACTERS Glume spines 1.5–2.5mm.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.
