Limnodea

HABIT Annual. Culms 20–60 cm long. Ligule an eciliate membrane.

INFLORESCENCE Inflorescence a panicle.

Panicle contracted.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 3.5–4 mm long; falling entire.

GLUMES Glumes reaching apex of florets; firmer than fertile lemma. Lower glume lanceolate; 1 length of upper glume; coriaceous; without keels; 3–5 -veined. Lower glume surface scabrous; without pits. Lower glume apex acute. Upper glume lanceolate; 1 length of adjacent fertile lemma; coriaceous; without keels; 3–5 -veined. Upper glume surface scabrous. Upper glume apex acute.

FLORETS Fertile lemma lanceolate; cartilaginous; keeled; wingless; 3 -veined. Lemma surface unwrinkled; without grooves. Lemma margins covering most of palea. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn subapical; geniculate. Palea 0.7 length of lemma; 2 -veined.

FLOWER Anthers 3.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION North America.

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