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.

Enteropogon ramosus

HABIT Perennial; caespitose. Culms 50–100 cm long; 4–6 -noded. Culm-internodes glaucous; smooth; distally glabrous. Lateral branches ample. Leaves cauline. Leaf-sheaths 8–13 cm long; without keel; smooth, or papillose; glabrous on surface. Ligule a ciliolate membrane; 0.3 mm long. Leaf-blade base broadly rounded. Leaf-blades tortuous; 10–20 cm long; 2–5 mm wide; glaucous. Leaf-blade margins scabrous. Leaf-blade apex attenuate; filiform.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 2–6; digitate; unilateral; 7–15 cm long. Rhachis angular. Spikelet packing broadside to rhachis; regular.

Spikelets appressed; solitary. Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 6–9 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; 0.5–2 mm long; pilose; obtuse. Floret callus hairs 1–1.5 mm long.

GLUMES Glumes persistent; similar; shorter than spikelet; thinner than fertile lemma; gaping. Lower glume linear; 2–3.5 mm long; 0.33–0.5 length of upper glume; membranous; without keels; 1 -veined. Lower glume primary vein scabrous. Lower glume lateral veins absent. Lower glume apex acuminate; mucronate. Upper glume linear; 5.5–7 mm long; 0.75–0.9 length of adjacent fertile lemma; membranous; without keels; 1 -veined. Upper glume primary vein scabrous. Upper glume lateral veins absent. Upper glume apex acuminate; mucronate.

FLORETS Fertile lemma lanceolate; dorsally compressed; 6–9 mm long; coriaceous; pallid, or purple; keeled; 3 -veined. Lemma surface granulose. Lemma apex acuminate; awned; 1 -awned. Principal lemma awn 10–14 mm long overall. Palea 5–6 mm long; 2 -veined. Apical sterile florets 1(–2) in number; linear. Apical sterile lemmas acute; awned; 1 -awned.

FLOWER Anthers 3; 1.2–1.5 mm long.

FRUIT Caryopsis flattened; concavo-convex; 2–5 mm long.

DISTRIBUTION Australasia: Australia.

NOTES Cynodonteae. Simon 1995.

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