GrassBase - The Online World Grass Flora

Descriptions

W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson

© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.

Agrostis inconspicua

HABIT Perennial; caespitose. Culms slender; 16–30 cm long. Ligule an eciliate membrane; 1.5–3 mm long; truncate. Leaf-blades 1–1.5 mm wide. Leaf-blade surface scaberulous.

INFLORESCENCE Inflorescence a panicle.

Panicle open; ovate; effuse; 3–15 cm long. Primary panicle branches spreading; 2–3 -nate; branching divaricately. Panicle branches capillary.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels 4–15 mm long; scaberulous.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 2–3 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus sparsely hairy.

GLUMES Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein scabrous. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 2–3 mm long; 1.1–1.5 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume primary vein scabrous. Upper glume lateral veins absent. Upper glume apex acute.

FLORETS Fertile lemma elliptic; 1.8–2 mm long; hyaline; without keel; 5 -veined. Lemma apex erose; truncate; muticous, or mucronate, or awned; 1 -awned. Principal lemma awn dorsal; arising 0.75 way up back of lemma; straight; 0–1 mm long overall. Palea absent or minute.

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

FRUIT Caryopsis with adherent pericarp; 1.6 mm long. Hilum linear.

DISTRIBUTION South America: southern South America.

NOTES Aveneae. Fl Pat 1995.

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