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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.
Davidsea
HABIT Perennial. Rhizomes short; pachymorph. Culms arching; 800–900 cm long; woody. Culm-internodes terete. Lateral branches dendroid. Branch complement several; in a clump; with 1 branch dominant. Culm-sheaths deciduous but leaving a persistent girdle. Culm-sheath blade linear, or lanceolate. Ligule an eciliate membrane. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades deciduous at the ligule; lanceolate.
INFLORESCENCE Synflorescence bractiferous; clustered at the nodes; in untidy tufts; with glumaceous subtending bracts; with axillary buds at base of spikelet; leafless between clusters.
Fertile spikelets sessile.
FERTILE SPIKELETS Spikelets comprising 1–3 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 15–20 mm long; falling entire. Rhachilla internodes definite.
GLUMES Glumes several; shorter than spikelet. Lower glume ovate; chartaceous; without keels; 13 -veined. Lower glume surface without pits. Lower glume apex acute.
FLORETS Fertile lemma ovate; chartaceous; without keel; wingless; 15 -veined. Lemma surface unwrinkled; without grooves. Lemma apex acute. Palea chartaceous; 5 -veined. Palea keels ciliate. Apical sterile florets resembling fertile though underdeveloped.
FLOWER Lodicules 3; ciliate. Anthers 6. Stigmas 3. Ovary glabrous.
DISTRIBUTION Tropical Asia.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.