Agrostis filipes

HABIT Perennial; caespitose. Culms erect, or geniculately ascending; 13–35 cm long. Ligule an eciliate membrane; 1–2 mm long; truncate. Leaf-blades 2.5–7.5 cm long; 1–2.5 mm wide. Leaf-blade surface smooth, or scaberulous; rough adaxially.

INFLORESCENCE Inflorescence a panicle.

Panicle open; linear; interrupted; 5–12 cm long.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform; terete.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 2.2–2.7 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 scaberulous. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 2.2–2.7 mm long; 1.5 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume primary vein scaberulous. Upper glume lateral veins absent. Upper glume apex acute.

FLORETS Fertile lemma oblong; 1.4–1.8 mm long; hyaline; without keel; 5 -veined. Lemma apex erose; truncate; awned; 1 -awned. Principal lemma awn dorsal; arising 0.5–0.66 way up back of lemma; geniculate; 1–2 mm long overall; with twisted column. Palea 0.5 mm long; hyaline; 2 -veined.

FLOWER Lodicules 2; membranous. Anthers 3; 0.5–0.8 mm long. Stigmas 2; laterally exserted.

FRUIT Caryopsis with adherent pericarp. Hilum linear. Endosperm farinose.

DISTRIBUTION Asia-tropical: India.

NOTES Aveneae. Fl Pak 1993.

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