Agrostis olympica

HABIT Perennial; caespitose. Culms erect; 4–20 cm long. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 1.7–2 mm long. Leaf-blades filiform; 1–8 cm long; 0.6–2.4 mm wide. Leaf-blade surface scabrous; rough adaxially; glabrous. Leaf-blade margins scabrous. Leaf-blade apex acute.

INFLORESCENCE Inflorescence a panicle.

Panicle open; linear, or lanceolate; dense; 1–4 cm long; 0.2–0.8 cm wide. Primary panicle branches ascending; 0.8–1.5 cm long. Panicle branches scabrous.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform; terete; 0.3–2 mm long; scaberulous.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic; laterally compressed; 1.5–2.3 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus bearded. Floret callus hairs 1 length of lemma.

GLUMES Glumes persistent; similar; reaching apex of florets, or exceeding apex of florets; firmer than fertile lemma; shiny; gaping. Lower glume ovate; 1 length of upper glume; membranous; purple; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 1.5–2.3 mm long; 1–1.1 length of adjacent fertile lemma; membranous; purple; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex acute.

FLORETS Fertile lemma oblong; 1.5–2 mm long; hyaline; without keel; 5 -veined. Lemma surface pilose. Lemma apex dentate; 4 -fid; truncate; awned; 1 -awned. Principal lemma awn dorsal; arising 0.5 way up back of lemma; geniculate; 2–4 mm long overall; with twisted column. Palea 1 length of lemma; hyaline; 2 -veined.

FLOWER Lodicules 2; membranous. Anthers 3; 0.3–0.5 mm long. Stigmas 2; laterally exserted.

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

DISTRIBUTION Asia-temperate: Soviet Middle Asia, Caucasus, and western Asia.

NOTES Aveneae. Fl Turk 1993.

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