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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.
Poa dentigluma
HABIT Perennial; caespitose. Culms erect; 3–6 cm long; 0 -noded. Lateral branches lacking. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 0.3–0.5 mm long. Leaf-blades flat, or conduplicate; 1–2.2 cm long; 1.5 mm wide.
INFLORESCENCE Inflorescence a panicle.
Panicle contracted; lanceolate; 1.5–2 cm long. Primary panicle branches appressed; bearing spikelets almost to the base.
Spikelets solitary. Fertile spikelets pedicelled.
FERTILE SPIKELETS Spikelets comprising 2 fertile florets; with a barren rhachilla extension. Spikelets oblong; laterally compressed; 2.8–3 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus glabrous.
GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 2.1–2.4 mm long; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex erose; obtuse. Upper glume ovate; 2.1–2.4 mm long; 0.8–0.9 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume apex erose; obtuse.
FLORETS Fertile lemma ovate; 2.5–2.6 mm long; membranous; keeled; 5 -veined. Lemma surface scaberulous; rough above. Lemma apex obtuse.
FLOWER Lodicules 2; membranous. Anthers 3.
FRUIT Caryopsis with adherent pericarp. Hilum punctiform.
DISTRIBUTION South America: western South America.
NOTES Poeae. Gr Peru 1995.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.