Sporobolus monandrus

HABIT Perennial; caespitose. Culms erect; 10–36 cm long; 1–2 -noded. Ligule a fringe of hairs. Leaf-blades 3–6 cm long; 1–3 mm wide.

INFLORESCENCE Inflorescence a panicle.

Panicle open; elliptic; 5–15 cm long; 1–6 cm wide. Primary panicle branches whorled at most nodes. Panicle branches capillary; glandular (in axils).

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 0.8–1 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes deciduous; similar; shorter than spikelet. Lower glume ovate; 0.3 mm long; 0.33 length of upper glume; membranous; without keels; 0 -veined. Lower glume lateral veins absent. Lower glume apex truncate, or obtuse. Upper glume ovate; 0.5–0.7 mm long; 0.5–0.7 length of adjacent fertile lemma; membranous; without keels; 0 -veined. Upper glume primary vein absent. Upper glume lateral veins absent. Upper glume apex truncate, or obtuse.

FLORETS Fertile lemma oblong; 0.8–1 mm long; membranous; without keel; 1 -veined. Lemma apex obtuse. Palea 2 -veined. Palea keels approximate.

FLOWER Anthers 1; 0.5 mm long.

FRUIT Caryopsis with free soft pericarp; obovoid; 0.6–0.8 mm long.

DISTRIBUTION South America: western South America, Brazil, and southern South America.

NOTES Eragrostideae. WDC.

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