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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.
Dryopoa
HABIT Perennial. Culms erect; 150–300 cm long. Ligule an eciliate membrane.
INFLORESCENCE Inflorescence a panicle.
Panicle open.
Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform.
FERTILE SPIKELETS Spikelets comprising 3–7 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 7.47–10.8 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes definite.
GLUMES Glumes persistent; shorter than spikelet; thinner than fertile lemma. Lower glume lanceolate; 0.5–0.75 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume surface without pits. Lower glume apex acute. Upper glume oblong; 1–1.3 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume surface scabrous. Upper glume apex acute.
FLORETS Fertile lemma oblong; chartaceous; keeled; wingless; 5 -veined. Lemma lateral veins prominent. Lemma surface scabrous; unwrinkled; without grooves. Lemma apex erose; truncate. Palea 1 length of lemma; 2 -veined. Palea keels ciliolate. Apical sterile florets resembling fertile though underdeveloped.
FLOWER Lodicules 2; membranous. Anthers 3. Ovary pubescent on apex.
FRUIT Caryopsis with adherent pericarp; oblong. Hilum linear; 0.33 length of caryopsis.
DISTRIBUTION Australasia.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.