Agrostis boyacensis

HABIT Perennial. Culms erect; 6–22 cm long. Culm-internodes distally glabrous. Lateral branches lacking. Leaves mostly basal. Leaf-sheaths longer than adjacent culm internode; smooth, or scaberulous; glabrous on surface. Ligule an eciliate membrane; 1.5–2 mm long; acute. Leaf-blades erect; flat, or convolute; 3–5 cm long; 1.5–2 mm wide. Leaf-blade venation prominent. Leaf-blade surface scaberulous.

INFLORESCENCE Inflorescence a panicle.

Panicle open; ovate; 3–5 cm long. Primary panicle branches appressed, or ascending; 1.5 cm long. Panicle branches scabrous.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets. Spikelets elliptic; laterally compressed; 2.5 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate; 2.5 mm long; 1.1 length of upper glume; membranous; purple; 1-keeled; 1 -veined. Lower glume primary vein scaberulous. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; membranous; purple; 1-keeled; 1 -veined. Upper glume primary vein scaberulous. Upper glume lateral veins absent. Upper glume apex acute.

FLORETS Fertile lemma elliptic; 1.5 mm long; hyaline; without keel; 5 -veined. Lemma apex obtuse; muticous. Palea absent or minute.

FLOWER Lodicules 2; 0.7 mm long; membranous. Anthers 3; 1 mm long.

FRUIT Caryopsis with adherent pericarp. Hilum linear.

DISTRIBUTION South America: western South America.

NOTES Aveneae. Swallen 2004.

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