Agrostis boliviana

HABIT Perennial; caespitose. Culms 25–75 cm long. Ligule an eciliate membrane; 4–5 mm long. Leaf-blades involute; 2–3 mm wide.

INFLORESCENCE Inflorescence a panicle.

Panicle open; elliptic; 10–15 cm long. Primary panicle branches ascending, or spreading; whorled at most nodes.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 3 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent.

GLUMES Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma; shiny; gaping. Lower glume lanceolate; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein smooth. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 3 mm long; 1.5 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume primary vein smooth. Upper glume lateral veins absent. Upper glume apex acute.

FLORETS Fertile lemma elliptic; 2 mm long; hyaline; without keel; 5 -veined. Lemma apex obtuse; awned; 1 -awned. Principal lemma awn dorsal; arising 0.25 way up back of lemma; geniculate; 2.5 mm long overall; with twisted column. Palea absent or minute.

FLOWER Lodicules 2; membranous. Anthers 3.

FRUIT Caryopsis with adherent pericarp. Hilum linear.

DISTRIBUTION South America: western South America.

NOTES Aveneae. Gr Peru 1995.

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