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.

Dichaetaria

HABIT Perennial. Rhizomes short. Culms 40–70 cm long. Ligule a ciliolate membrane. Leaf-blade midrib evident.

INFLORESCENCE Inflorescence a panicle.

Panicle open.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 12–15 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; pilose.

GLUMES Glumes lower persistent, upper deciduous; shorter than spikelet; thinner than fertile lemma. Lower glume lanceolate; 0.66 length of upper glume; membranous; 1-keeled; 3 -veined. Lower glume lateral veins ribbed. Lower glume surface without pits. Lower glume apex acute. Upper glume lanceolate; 0.5 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume lateral veins ribbed. Upper glume apex acute.

FLORETS Fertile lemma lanceolate; coriaceous; without keel; wingless; 3 -veined. Lemma surface asperulous; unwrinkled; without grooves. Lemma apex dentate; 2 -fid; incised 0.2 of lemma length; setaceously attenuate; awned; 1 -awned. Principal lemma awn from a sinus. Apical sterile florets 1 in number; barren; linear. Apical sterile lemmas awned.

DISTRIBUTION Tropical Asia.

Please cite this publication as detailed in How to Cite Version: 27th January 2014.