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Descriptions
W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson
© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
Eriachne humilis
HABIT Annual; caespitose. Culms erect, or geniculately ascending; 15–30 cm long; 2–3 -noded. Culm-nodes glabrous, or pubescent. Leaf-sheaths loose; striately veined; hispid. Ligule a fringe of hairs. Leaf-blades filiform; 0.5–1 mm wide.
INFLORESCENCE Inflorescence a panicle; comprising 3–5 fertile spikelets.
Panicle open; ovate; 1–3 cm long; bearing few spikelets. Primary panicle branches 0.4–1.5 cm long.
Spikelets solitary. Fertile spikelets pedicelled. Pedicels 4–15 mm long; tip widened.
FERTILE SPIKELETS Spikelets comprising 2 fertile florets; without rhachilla extension. Spikelets ovate; laterally compressed; compressed slightly; 4 mm long; breaking up at maturity; disarticulating below each fertile floret.
GLUMES Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma. Lower glume elliptic, or obovate; 1 length of upper glume; membranous; without keels; 9–11 -veined. Lower glume lateral veins prominent. Lower glume apex obtuse. Upper glume elliptic, or obovate; 4 mm long; membranous; without keels; 9–11 -veined. Upper glume lateral veins prominent. Upper glume apex obtuse.
FLORETS Fertile lemma lanceolate, or ovate; laterally compressed; 3.5 mm long; chartaceous; yellow; without keel; 7 -veined. Lemma lateral veins prominent. Lemma surface villous. Lemma margins involute. Lemma apex acute; awned; 1 -awned. Principal lemma awn 2–3 mm long overall. Palea elliptic; 1 length of lemma; chartaceous.
FRUIT Caryopsis with adherent pericarp.
DISTRIBUTION Asia-tropical: Papuasia. Australasia: Australia.
NOTES Eriachneae. Hartley 1994.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.