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.

Brachyachne convergens

HABIT Annual; caespitose. Culms decumbent; 20–45 cm long. Ligule a ciliolate membrane. Leaf-blades 3–6 cm long; 2–3 mm wide.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 3–4; digitate; unilateral; 3–5 cm long. Rhachis flattened; scabrous on margins. Spikelet packing broadside to rhachis; crowded; regular; 2 -rowed.

Spikelets appressed; solitary. Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; compressed strongly; 3–5 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes deciduous; similar; with lower wider than upper; exceeding apex of florets; firmer than fertile lemma; parallel to lemmas. Lower glume oblong; 3–5 mm long; 1 length of upper glume; coriaceous; 1-keeled; winged on keel; 1 -veined. Lower glume primary vein scaberulous. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume oblong; 3–5 mm long; 1.5–2.5 length of adjacent fertile lemma; coriaceous; 1-keeled; winged on keel; 1 -veined. Upper glume primary vein scaberulous. Upper glume lateral veins absent. Upper glume apex obtuse.

FLORETS Fertile lemma ovate; laterally compressed; 2 mm long; membranous; keeled; 3 -veined. Lemma midvein ciliate. Lemma margins ciliate. Lemma apex obtuse. Palea 2 -veined. Palea keels ciliate.

FRUIT Caryopsis with adherent pericarp; ovoid; 1 mm long.

DISTRIBUTION Australasia: Australia.

NOTES Cynodonteae. WDC.

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