Note - this takes you off
of our website |
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 natans
HABIT Perennial. Rhizomes absent. Culms erect; 20–40 cm long. Ligule an eciliate membrane; 3 mm long. Leaf-blades 6–12 cm long; 2 mm wide. Leaf-blade surface scabrous.
INFLORESCENCE Inflorescence a panicle.
Panicle open; ovate; 4–8 cm long. Panicle branches scabrous.
Spikelets solitary. Fertile spikelets pedicelled.
FERTILE SPIKELETS Spikelets comprising 4–6 fertile florets; with diminished florets at the apex. Spikelets oblong, or ovate; laterally compressed; 2–5 mm long; 1–2 mm wide; 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 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume ovate; 0.5 length of adjacent fertile lemma; membranous; without keels; 3 -veined. Upper glume apex obtuse.
FLORETS Fertile lemma elliptic; 1.5–2.5 mm long; chartaceous; without keel; 7 -veined. Lemma lateral veins ribbed; excurrent. Lemma surface scaberulous; rough on veins. Lemma apex erose; obtuse. Palea 2 -veined. Apical sterile florets resembling fertile though underdeveloped.
FRUIT Caryopsis with adherent pericarp. Hilum punctiform.
DISTRIBUTION Asia-temperate: Soviet far east.
NOTES Poeae. Fl USSR 1996.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.