Puccinellia gorodkovii

HABIT Perennial; caespitose; clumped densely. Culms geniculately ascending; 10–40 cm long; 2–3 -noded. Leaf-sheaths open for most of their length. Ligule an eciliate membrane; 1.5–2.5 mm long. Leaf-blades flat, or convolute; 0.7–2.5 mm wide; grey-green. Leaf-blade surface scaberulous; rough adaxially. Leaf-blade margins scaberulous.

INFLORESCENCE Inflorescence a panicle.

Panicle open; ovate; effuse; 3–8 cm long. Primary panicle branches 2 -nate; bearing 2–8 fertile spikelets on each lower branch. Panicle branches capillary; smooth, or scaberulous; rough distally.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 3–4 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; compressed slightly; 4–6.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent.

GLUMES Glumes persistent; shorter than spikelet. Lower glume elliptic; 1 mm long; 0.66 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume elliptic; 1.5 mm long; 0.75 length of adjacent fertile lemma; membranous; without keels; 3 -veined. Upper glume apex obtuse.

FLORETS Fertile lemma oblong; 2–2.8 mm long; membranous; much thinner above; without keel; 5 -veined. Lemma lateral veins obscure; stopping well short of apex. Lemma surface pubescent; hairy at base; hairy on veins. Lemma apex obtuse. Palea 1 length of lemma; 2 -veined. Palea keels scabrous; adorned above. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Anthers 3; 1–1.5 mm long. Ovary glabrous.

FRUIT Caryopsis with adherent pericarp; ovoid; 1.4–2 mm long. Hilum punctiform.

DISTRIBUTION Asia-temperate: Siberia.

NOTES Poeae. Fl Arkt 1995.

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