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GrassBase - The Online World Grass Flora
W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson
© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
HABIT Perennial. Rhizomes short; pachymorph. Culms leaning (1/1); 300–883.3–1800 cm long; woody; without nodal roots. Culm-internodes terete. Lateral branches dendroid. Branch complement several (1/1); in a clump (1/1); with subequal branches (1/1). Culm-sheaths auriculate (1/1). Culm-sheath blade linear (1/2), or ovate (1/2); cordate (1/1). Leaf-sheath auricles absent (2), or erect (1). Ligule an eciliate membrane (2), or a ciliate membrane (1). Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades lanceolate.
INFLORESCENCE Synflorescence bractiferous; clustered at the nodes; in untidy tufts; with glumaceous subtending bracts (2), or spathaceous subtending bracts (1); with axillary buds at base of spikelet; leafy between clusters (2/2).
FERTILE SPIKELETS Spikelets comprising 1–4 fertile florets (1); with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 10–24.66–50 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite (2/2).
GLUMES Glumes several. Lower glume ovate (1/1). Lower glume surface without pits. Lower glume apex cuspidate (1/1).
FLORETS Fertile lemma lanceolate (2), or ovate (1); without keel; wingless; 9 -veined (1/2), or 14 -veined (1/2). Lemma surface unwrinkled; without grooves. Lemma margins eciliate (2), or ciliolate (1). Lemma apex acute (2), or cuspidate (1). Palea 1 length of lemma; 10 -veined (2), or 12–16 -veined (1). Palea keels separated (2), or approximate (1); ciliolate. Palea apex dentate (1/1). Apical sterile florets resembling fertile though underdeveloped (1), or distinct from fertile (2); 1 in number (2/2).
FLOWER Lodicules 3; glabrous (1), or ciliate (2). Anthers 6. Stigmas 3. Ovary unappendaged (1), or umbonate (2).
DISTRIBUTION Tropical Asia.
Please cite this publication as detailed in How to Cite Version: 16th November 2012.