Panicum repens

HABIT Perennial. Rhizomes elongated. Stolons absent, or present. Culms erect, or geniculately ascending; 30–100 cm long. Leaves distichous. Ligule a ciliate membrane. Leaf-blades erect; flat, or convolute; 7–25 cm long; 2–8 mm wide; coriaceous; stiff; glaucous. Leaf-blade apex acuminate, or attenuate; muticous, or pungent.

INFLORESCENCE Inflorescence a panicle.

Panicle open; oblong; 5–20 cm long.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets ovate; dorsally compressed; acute; 2.5–3 mm long; falling entire.

GLUMES Glumes dissimilar; reaching apex of florets; thinner than fertile lemma. Lower glume oblate; 0.33 length of spikelet; hyaline; without keels; 1(–3) -veined. Lower glume lateral veins absent, or obscure. Lower glume apex obtuse, or acute. Upper glume ovate; 1 length of spikelet; membranous; without keels; (7–)9 -veined. Upper glume apex acute.

FLORETS Basal sterile florets male; with palea. Lemma of lower sterile floret similar to upper glume; ovate; 1 length of spikelet; membranous; 7–9 -veined; acute. Fertile lemma oblong; dorsally compressed; 2–2.5 mm long; indurate; pallid; shiny; without keel. Lemma margins involute. Lemma apex obtuse. Palea involute; indurate.

DISTRIBUTION Europe: southwestern and southeastern. Africa: north, Macaronesia, west tropical, west-central tropical, northeast tropical, east tropical, southern tropical, south, and western Indian ocean. Asia-temperate: western Asia, Arabia, China, and eastern Asia. Asia-tropical: India, Indo-China, Malesia, and Papuasia. Australasia: Australia. Pacific: northwestern and north-central. North America: south-central USA and southeast USA. South America: Mesoamericana, Caribbean, northern South America, Brazil, and southern South America.

NOTES Paniceae. FTEA.

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