Puccinellia degeensis

HABIT Perennial; caespitose; clumped densely. Culms geniculately ascending; 15–20 cm long; 1–1.5 mm diam. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 1 mm long; truncate. Leaf-blades flat, or conduplicate; 3–5 cm long; 1–3 mm wide. Leaf-blade margins scabrous.

INFLORESCENCE Inflorescence a panicle; embraced at base by subtending leaf.

Panicle open; elliptic; 3–4 cm long; 3 cm wide. Primary panicle branches 2–4 -nate; 1–2 cm long. Panicle branches smooth.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 2–3 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 3–4 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume ovate; 0.6–1 mm long; 0.66 length of upper glume; membranous; without keels; 0–1 -veined. Lower glume lateral veins absent. Upper glume elliptic; 1–1.5 mm long; 0.5 length of adjacent fertile lemma; membranous; without keels; 1–3 -veined. Upper glume lateral veins absent, or obscure.

FLORETS Fertile lemma oblong; 2–2.5 mm long; membranous; without keel; 5 -veined. Lemma surface glabrous. Lemma apex obtuse. Palea 2 -veined. Palea keels smooth. Palea apex dentate; 2 -fid; with excurrent keel veins. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Anthers 3; 1.2–1.5 mm long.

DISTRIBUTION Asia-temperate: China.

NOTES Poeae. Fl China 2005.

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