Digitaria pampinosa

HABIT Perennial. Culms 25–70 cm long; 3 -noded. Culm-internodes distally glabrous. Culm-nodes glabrous, or bearded. Leaf-sheaths longer than adjacent culm internode; glabrous on surface; outer margin hairy. Ligule a ciliolate membrane. Leaf-blades 8–10 cm long; 2–3 mm wide. Leaf-blade surface glabrous; hairless except near base. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 2–3; paired, or digitate; unilateral; 5–10 cm long. Rhachis angular; scaberulous on margins. Raceme-bases pubescent.

Spikelets in threes. Fertile spikelets pedicelled; 3 in the cluster. Pedicels unequal.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; 2 mm long; falling entire.

GLUMES Glumes one the lower absent or obscure; reaching apex of florets; thinner than fertile lemma. Upper glume elliptic; 1 length of spikelet; membranous; without keels; 3–5 -veined. Upper glume surface pubescent; hairy between veins; with capitate hairs.

FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret elliptic; 1 length of spikelet; membranous; 5–7 -veined; pubescent; hairy on veins; with capitate hairs. Fertile lemma elliptic; 2 mm long; cartilaginous; much thinner on margins; purple; without keel. Lemma surface striate. Lemma margins flat; covering most of palea. Lemma apex apiculate. Palea cartilaginous.

DISTRIBUTION South America: Brazil.

NOTES Paniceae. Henrard 2004.

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