Glyceria lithuanica (Gorski) Gorski

This is a generally more slender species than Glyceria leptolepis, the other species in China with only 2 anthers. The basal culm internodes are not hard and canelike as in G. leptolepis, but flatten on pressing.

Perennial, rhizomatous. Culms soft, 60–150 cm tall, 3–5 mm in diam. Leaf sheaths not prominently keeled, lower sheaths scabrid; leaf blades flat, soft, thin, up to 30 cm × 4–9 mm, scabrid, apex acute; ligule 2–3 mm. Panicle ovate in outline, 15–30 cm, exserted, spikelets many; branches 2–4 per node, spreading, often flexuous, sometimes nodding, filiform, scabrid. Spikelets elliptic to ovate-oblong, 5–8 mm, florets 3–6, bright green or purple tinged; rachilla densely scabrid; glumes ovate, membranous, 1-veined, lower glume 1.2–1.8 mm, upper glume 1.7–2.5 mm, apex subobtuse; lemmas lanceolate-oblong, 2.5–4 mm, thinly herbaceous, often minutely granular or scaberulous, 7-veined, veins scabrid, apex membranous, obtuse; palea as long as or slightly longer than lemma, keels wingless, scaberulous, apex emarginate. Stamens 2, anthers 0.5–0.8 mm. Fl. Jun–Aug. 2n = 20.

Jilin, Liaoning [Japan, Korea, Mongolia, Russia; SW Asia (Caucasus), C and N Europe].

Swampy forests, forest margins, streamsides; 600–1800 m.

Poa lithuanica Gorski in Eichwald, Naturihist. Skizze 117. 1830; Glyceria aquatica (Linnaeus) J. Presl & C. Presl subsp. debilior (Trinius ex Fr. Schmidt) T. Koyama; G. aquatica var. debilior Trinius ex Fr. Schmidt; G. debilior (Trinius ex Fr. Schmidt) Kudo; G. orientalis Komarov.

Glyceria lithuanica is a species of grass in the family Poaceae.

It is native to Eurasia.