Puccinellia jenisseiensis

HABIT Perennial; caespitose. Culms geniculately ascending; 25–40 cm long. Leaf-sheaths open for most of their length. Ligule an eciliate membrane. Leaf-blades 2–2.5 mm wide.

INFLORESCENCE Inflorescence a panicle.

Panicle open; ovate; 8–15 cm long. Panicle branches capillary; flexuous; scaberulous.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 5–7 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; compressed slightly; 8–10 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes persistent; shorter than spikelet. Lower glume ovate; 2 mm long; 0.75 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex obtuse. Upper glume ovate; 2.5–3 mm long; 0.66 length of adjacent fertile lemma; membranous; without keels; 3 -veined. Upper glume apex erose; obtuse.

FLORETS Fertile lemma obovate; 4–4.5 mm long; membranous; much thinner above; purple; keeled; distinctly keeled; 5 -veined. Lemma lateral veins obscure; stopping well short of apex. Lemma surface pubescent; hairy at base. Lemma margins ciliolate. Lemma apex acute. Palea 2 -veined. Palea keels ciliate; adorned all along. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Anthers 3; 2 mm long. Ovary glabrous.

FRUIT Caryopsis with adherent pericarp. Hilum punctiform.

DISTRIBUTION Asia-temperate: Siberia.

NOTES Poeae. Fl USSR 1995.

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