Paspalum rectum

HABIT Perennial. Culms decumbent; 60–90 cm long. Ligule an eciliate membrane. Leaf-blades filiform; involute; 20–40 cm long; 1 mm wide.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 1; single; unilateral; 14 cm long. Rhachis narrowly winged; angular; 1 mm wide. Spikelet packing 4 -rowed.

Spikelets in pairs. Fertile spikelets pedicelled. Pedicels oblong.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets obovate; dorsally compressed; plano-convex; subacute; 2.5 mm long; falling entire.

GLUMES Glumes one the lower absent or obscure; reaching apex of florets; thinner than fertile lemma. Upper glume obovate; 1 length of spikelet; membranous; without keels; 5 -veined. Upper glume apex acute.

FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret obovate; 1 length of spikelet; membranous; 3 -veined; acute. Fertile lemma elliptic; 2.3 mm long; indurate; pallid; without keel. Lemma margins involute. Lemma apex acute. Palea involute; indurate.

FLOWER Anthers 3.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION South America: Brazil.

NOTES Paniceae. WDC 1995.

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