Yakirra majuscula

HABIT Annual. Culms 30–60 cm long. Ligule a fringe of hairs. Leaf-blades 5–10 cm long; 2–4 mm wide.

INFLORESCENCE Inflorescence a panicle.

Panicle open; ovate; 4–12 cm long.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 5–6 mm long; falling entire; readily shedding fertile florets. Floret callus evident; 0.75 mm long; winged; with free apical wings; these appendages 0.5 mm long; truncate.

GLUMES Glumes dissimilar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.5 length of spikelet; membranous; without keels; 5 -veined. Lower glume apex acute. Upper glume ovate; 5–6 mm long; 1 length of spikelet; membranous; without keels; 7 -veined. Upper glume apex acute.

FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret similar to upper glume; ovate to orbicular; 1 length of spikelet; membranous; 5 -veined; acute. Fertile lemma ovate; 4–5 mm long; indurate; without keel; 5 -veined. Lemma margins involute. Lemma apex obtuse. Palea involute; 1 length of lemma; indurate. Palea apex obtuse.

DISTRIBUTION Australasia: Australia.

NOTES Paniceae. WDC.

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