Agrostis innominata

HABIT Perennial; caespitose. Rhizomes elongated. Stolons absent, or present. Culms erect, or geniculately ascending; 10–70 cm long. Leaf-sheaths smooth. Ligule an eciliate membrane; 1 mm long. Leaf-blades 1–15 cm long; 1–5 mm wide. Leaf-blade surface smooth, or scaberulous. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence a panicle.

Panicle open; oblong, or ovate; 1–20 cm long. Panicle branches scaberulous.

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

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate, or oblong; laterally compressed; 2–3.5 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; 2.6 mm long; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 2.6 mm long; 1.3 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume lateral veins absent. Upper glume apex acute.

FLORETS Fertile lemma elliptic, or oblong; 2 mm long; hyaline; without keel; 3–5 -veined. Lemma apex truncate; awned; 1 -awned. Principal lemma awn dorsal; arising 0.3 way up back of lemma; geniculate. Palea present; 1 mm long; 0.5 length of lemma; hyaline; 2 -veined.

FLOWER Lodicules 2; membranous. Anthers 3; 1.5 mm long.

FRUIT Caryopsis with adherent pericarp. Hilum linear.

DISTRIBUTION Asia-temperate: Siberia.

NOTES Aveneae. Enustschenko 2011.

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