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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.
Enneapogon truncatus
HABIT Perennial. Culms 30–50 cm long. Lateral branches sparse. Ligule a fringe of hairs. Leaf-blades involute, or convolute; 6–24 cm long; 2–3 mm wide. Leaf-blade surface scabrous; glabrous. Leaf-blade apex acuminate.
INFLORESCENCE Inflorescence a panicle. Peduncle pilose above, or hirsute above.
Panicle spiciform; linear; 4–10 cm long; 0.8–1(–3) cm wide.
Spikelets solitary. Fertile spikelets pedicelled.
FERTILE SPIKELETS Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 2.8–6.4 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 lanceolate, or ovate; 2.8–6.4 mm long; 1 length of upper glume; membranous; without keels; 5–7 -veined. Lower glume surface pubescent, or pilose. Lower glume apex acute; muticous, or mucronate. Upper glume elliptic; 2.8–6.4 mm long; 1.5–2 length of adjacent fertile lemma; membranous; without keels; 5–7 -veined. Upper glume surface pubescent, or pilose. Upper glume apex acute.
FLORETS Fertile lemma orbicular; 1.8–2.8 mm long; membranous, or cartilaginous; firmer above (knuckled); without keel; 9–11 -veined. Lemma lateral veins ribbed. Lemma surface pilose; hairy below (0.5 of length); inner surface transversely fringed. Lemma margins ciliate. Lemma apex dentate; 9 -fid; awned; 9 -awned. Principal lemma awn 2.3–6.4 mm long overall; 1.3–2.3 length of lemma; limb plumose; glabrescent towards tip. Lateral lemma awns arising on apex of lobes; subequal to principal; plumose. Palea 2.6–3.6 mm long; 1.3–1.4 length of lemma; membranous. Palea keels ciliolate; adorned all along. Palea surface pubescent; hairy on back; hairy all along. Palea apex awned. Apical sterile florets 2–3 in number; barren. Apical sterile lemmas awned; 9 -awned. Apical sterile lemma awns ciliate.
FLOWER Lodicules 2. Anthers 3; 0.6–0.9 mm long.
FRUIT Caryopsis with adherent pericarp; ellipsoid, or obovoid; plano-convex; 1.1–1.8 mm long. Hilum punctiform.
DISTRIBUTION Australasia: Australia.
NOTES Pappophoreae. Kakudidi.
ADDITIONAL CHARACTERS Lemma hairs less than base of awns.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.
