Deyeuxia inaequalis

HABIT Perennial; caespitose. Culms erect; slender; 75 cm long. Leaf-sheaths striately veined; scaberulous; glabrous on surface. Ligule an eciliate membrane; 3–5 mm long; lacerate. Leaf-blades 1–5 mm wide. Leaf-blade margins scaberulous. Leaf-blade apex acute.

INFLORESCENCE Inflorescence a panicle.

Panicle spiciform; linear; 1–6 cm long. Panicle axis scabrous.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 5–6 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pilose.

GLUMES Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma; gaping. Lower glume lanceolate; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein scaberulous. Lower glume lateral veins absent. Lower glume apex acuminate. Upper glume lanceolate; 2–2.5 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume primary vein scaberulous. Upper glume apex acuminate.

FLORETS Fertile lemma oblong; 2.5 mm long; coriaceous; much thinner above; without keel; 5 -veined. Lemma surface scabrous. Lemma apex dentate; 4 -fid; awned; 1 -awned. Principal lemma awn dorsal; arising 0.1 way up back of lemma; geniculate; 3.5–4.5 mm long overall; with a straight or slightly twisted column. Palea 1 length of lemma.

FLOWER Lodicules 2. Anthers 3. Stigmas 2.

FRUIT Caryopsis with adherent pericarp. Hilum punctiform. Disseminule comprising a floret.

DISTRIBUTION Australasia: Australia.

NOTES Aveneae. Fl W Austral 1994.

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