GrassBase - The Online World Grass Flora


W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson

© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.

Entolasia marginata

HABIT Perennial. Rhizomes short. Butt sheaths pilose. Culms geniculately ascending, or decumbent, or rambling; 20–60(–200) cm long; wiry; 4–10 -noded; without nodal roots, or rooting from lower nodes. Culm-internodes scaberulous; distally glabrous, or hirsute; with tubercle-based hairs. Culm-nodes glabrous, or pubescent. Ligule a fringe of hairs. Leaf-blades linear, or lanceolate; flat; 3–20 cm long; 2–15 mm wide. Leaf-blade midrib evident. Leaf-blade surface scabrous; glabrous, or hirsute; sparsely hairy; with tubercle-based hairs. Leaf-blade margins cartilaginous; ciliate; hairy at base. Leaf-blade apex attenuate; simple.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 3–10; borne along a central axis; erect; unilateral; 1–12 cm long; bearing 2–12 fertile spikelets on each (secondary); simple, or secondarily branched. Central inflorescence axis 4–20 cm long. Rhachis angular; scaberulous on margins. Spikelet packing adaxial; regular; 2 -rowed.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels linear; flattened.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; acute, or acuminate; 2.5–3.8 mm long; falling entire.

GLUMES Glumes dissimilar; exceeding apex of florets; thinner than fertile lemma. Lower glume ovate; 0.5–1 mm long; 0.2–0.25 length of spikelet; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 2.5–3.8 mm long; 1 length of adjacent fertile lemma; 1 length of spikelet; herbaceous; without keels; 5 -veined. Upper glume apex acute.

FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret similar to upper glume; ovate; 2.5–3.8 mm long; 1 length of spikelet; herbaceous; 5 -veined; acute. Fertile lemma elliptic; dorsally compressed; 2–3 mm long; coriaceous; without keel; 5 -veined. Lemma lateral veins obscure. Lemma surface pubescent; hairy all along. Lemma margins involute. Lemma apex acute. Palea involute; coriaceous; 2 -veined. Palea surface pubescent.

DISTRIBUTION Asia-tropical: Papuasia. Australasia: Australia and New Zealand. Pacific: north-central.

NOTES Paniceae. Vickery.

Please cite this publication as detailed in How to Cite Version: 3rd February 2016.