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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.
Racemobambos hirta
HABIT Perennial. Culms scandent; woody. Culm-internodes terete; hollow; distally glabrous. Culm-nodes flush with internodes. Lateral branches dendroid. Branch complement many; with 1 branch dominant. Culm-sheaths deciduous; chartaceous; glabrous; without auricles. Leaves cauline. Leaf-sheath oral hairs setose; 6–10 mm long. Ligule an eciliate membrane. Leaf-blade base with a brief petiole-like connection to sheath. Leaf-blades linear; 4–8 cm long; 3–4 mm wide. Leaf-blade surface glabrous.
INFLORESCENCE Inflorescence a panicle; comprising 10 fertile spikelets; bracteate at pedicel base; embraced at base by subtending leaf.
Panicle 3–4 cm long; bearing few spikelets. Primary panicle branches indistinct the panicle almost racemose.
Spikelets solitary. Fertile spikelets pedicelled.
FERTILE SPIKELETS Spikelets comprising 5–7 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 20 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes 4 mm long; pubescent.
GLUMES Glumes two; persistent; shorter than spikelet.
FLORETS Fertile lemma ovate; 7 mm long; chartaceous; without keel. Lemma surface hirsute. Palea 2–3 -veined. Palea keels ciliate. Apical sterile florets resembling fertile though underdeveloped.
FLOWER Lodicules 3; 1 mm long. Anthers 6; 3 mm long. Stigmas 3. Ovary umbonate; pubescent on apex.
FRUIT Caryopsis with adherent pericarp.
DISTRIBUTION Asia-tropical: Papuasia.
NOTES Bambuseae. Holttum 1996.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.