Agrostis liebmannii

HABIT Perennial; caespitose. Culms geniculately ascending; 30–40 cm long. Culm-internodes distally glabrous. Lateral branches lacking. Leaf-sheaths scaberulous. Ligule an eciliate membrane; 2 mm long; erose; truncate. Leaf-blades 2–8 cm long; 2–3 mm wide. Leaf-blade surface scabrous.

INFLORESCENCE Inflorescence a panicle.

Panicle open; lanceolate; 10–16 cm long. Primary panicle branches ascending. Panicle branches scabrous.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets elliptic; laterally compressed; 1.5 mm long; breaking up at maturity; disarticulating below each fertile floret.

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

FLORETS Fertile lemma elliptic; 1.5 mm long; hyaline; without keel; 5 -veined. Lemma apex acute; muticous. Palea 0.9 length of lemma; hyaline.

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

FRUIT Caryopsis with adherent pericarp. Hilum linear.

DISTRIBUTION North America: Mexico.

NOTES Aveneae. N Amer Fl 2004.

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