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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.
Neyraudia reynaudiana
HABIT Perennial. Rhizomes short; scaly. Culms erect; 200–300 cm long. Culm-internodes solid. Leaves cauline. Ligule a fringe of hairs; 3–4 mm long. Leaf-blades deciduous at the ligule; 20–100 cm long; 8–25 mm wide. Leaf-blade surface smooth. Leaf-blade apex filiform.
INFLORESCENCE Inflorescence a panicle.
Panicle open; lanceolate; dense; 30–50 cm long; 8–10 cm wide. Primary panicle branches profusely divided. Panicle branches angular; scaberulous.
Spikelets solitary. Fertile spikelets pedicelled.
FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 4–8 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 6–8 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 0.2–0.4 mm long; pubescent.
GLUMES Glumes persistent; similar; shorter than spikelet; similar to fertile lemma in texture. Lower glume lanceolate; 2–2.5 mm long; 0.9 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume lanceolate; 2–2.5 mm long; 0.75 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex acuminate.
FLORETS Basal sterile florets barren; without significant palea; persisting on inflorescence. Lemma of lower sterile floret similar to fertile lemma; lanceolate; 4 mm long; membranous; 3 -veined; eciliate on margins. Fertile lemma lanceolate; 3.5–4.5 mm long; membranous; without keel; 3 -veined. Lemma margins ciliate. Lemma hairs 2–2.5 mm long. Lemma apex lobed; 2 -fid; with linear lobes; incised 0.1–0.2 of lemma length; awned; 1 -awned. Principal lemma awn from a sinus; curved; 1.5–2.5 mm long overall. Palea 0.75 length of lemma; 2 -veined. Palea keels scaberulous. Apical sterile florets resembling fertile though underdeveloped.
FLOWER Lodicules 2; fleshy. Anthers 3; 1.5 mm long.
FRUIT Caryopsis with adherent pericarp; linear; isodiametric; biconvex; 1.1 mm long. Embryo 0.4 length of caryopsis. Hilum punctiform.
DISTRIBUTION Asia-temperate: China and eastern Asia. Asia-tropical: India, Indo-China, and Malesia. North America: southeast USA.
NOTES Eragrostideae. WDC.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.
