Dryopoa dives

HABIT Perennial; caespitose. Culms erect; 150–300 cm long; 3–10 mm diam.; 5 -noded. Culm-nodes glabrous. Ligule an eciliate membrane; 8–20 mm long; lacerate. Leaf-blades 10–50 cm long; 7–18 mm wide. Leaf-blade surface scabrous; rough on both sides. Leaf-blade margins scabrous. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence a panicle.

Panicle open; pyramidal; 20–50 cm long.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform; scabrous.

FERTILE SPIKELETS Spikelets comprising 3–7 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 9 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes persistent; dissimilar; shorter than spikelet; thinner than fertile lemma. Lower glume lanceolate; 3–3.5 mm long; 0.5–0.75 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein scabrous. Lower glume lateral veins absent. Lower glume apex acute. Upper glume oblong; 4–7 mm long; 1–1.3 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume primary vein scabrous. Upper glume surface scabrous; rough on veins. Upper glume apex acute.

FLORETS Fertile lemma oblong; 4–5.5 mm long; chartaceous; keeled; 5 -veined. Lemma lateral veins prominent. Lemma surface scabrous. Lemma apex erose; truncate. Palea 1 length of lemma; 2 -veined. Palea keels ciliolate. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 2; membranous. Anthers 3; 3 mm long. Ovary pubescent on apex.

FRUIT Caryopsis with adherent pericarp; oblong. Hilum linear; 0.33 length of caryopsis.

DISTRIBUTION Australasia: Australia.

NOTES Poeae. Vickery.

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