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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.
Torreyochloa erecta
HABIT Perennial. Rhizomes elongated. Culms geniculately ascending; 10–40 cm long. Ligule an eciliate membrane. Leaf-blades 5–12 cm long; 4–9 mm wide.
INFLORESCENCE Inflorescence a panicle.
Panicle open; elliptic, or ovate; dense; 3–8 cm long.
Spikelets solitary. Fertile spikelets pedicelled.
FERTILE SPIKELETS Spikelets comprising 3–4 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 3–4.5 mm long; breaking up at maturity; disarticulating below each fertile floret.
GLUMES Glumes persistent; similar; shorter than spikelet; thinner than fertile lemma. Lower glume ovate; 0.75 mm long; 0.75 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume ovate; 1 mm long; 0.3–0.4 length of adjacent fertile lemma; membranous; without keels; 3 -veined. Upper glume apex obtuse.
FLORETS Fertile lemma oblong; 2.5–3 mm long; chartaceous; without keel; 7 -veined. Lemma lateral veins ribbed. Lemma surface scaberulous; rough on veins. Lemma apex erose; truncate, or obtuse. Palea 2 -veined. Palea keels scaberulous. Apical sterile florets resembling fertile though underdeveloped.
FRUIT Hilum punctiform.
DISTRIBUTION North America: northwest USA and southwest USA.
NOTES Poeae. Man US Gr.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.