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Greenish Oat Grass
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Greenish Oat Grass
P Native Photo: Kuntal Saha
Common name: Greenish Oat Grass
Botanical name: Trisetopsis virescens    Family: Poaceae (Grass family)
Synonyms: Helictotrichon virescens, Avena roylei, Helictotrichon roylei

Greenish Oat Grass is a clustered perennial grass with stems 0.4-1.2 m tall, erect, slender. Leaf-blades are flat, 8-35 cm long, 2-8.5 mm wide, green, rough above; ligule 1-5 mm long. Flower panicles are loose, 12-40 cm long, erect or nodding, the branches spreading or rising up, the lower 5-12 cm long and with up to 12 spikelets each. Spikelets are 3-4-flowered, oblong, 9-14 mm long; glumes lanceshaped to oblong-lanceshaped, translucent on the margins and at the tip, the lower 1-3-nerved, 5-9 mm long, the upper 5-nerved, 6-12 mm long; lemmas somewhat leathery with transluscent margins and tip, the lower 7.5-2.5 mm long, 5-7-nerved, rough all over or only on the nerves at the tip, shallowly 2-toothed to deeply bifid at the tip, the lobes sometimes tapering or with short awn-points; awn from just above the middle, geniculate, 10-18 mm long. Greenish Oat Grass is found in India, Pakistan, Myanmar, China. It is found in the Himalayas at altitudes of 2100-4400 m. Flowering: July-August.

Identification credit: Kuntal Saha Photographed in Mukteshwar, Uttarakhand.

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