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St Thomas Mount Rockgrass
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St Thomas Mount Rockgrass
A Native Photo: Siddarth Machado
Common name: St Thomas Mount Rockgrass
Botanical name: Oropetium thomaeum    Family: Poaceae (Grass family)
Synonyms: Nardus thomaea, Rottboellia thomaea

St Thomas Mount Rockgrass is a clustered annual grass with culms erect, 5 cm tall, branched; nodes hairless. Leaves are few, scattered, blade 1-2.5 cm long, thread-like or conduplicate, margins with tubercle based hairs; sheaths small, shortly keeled; ligule narrow, membranous. Flower-spikes are borne at branch-ends, solitary. 2.5-4 cm long. cylindrical; axis compressed, scabrous. Spikelets are solitary, biseriate, sunken in the cavities of the axis along the sides; glumes persistent, unequal, lower one minute, broadly triangular, upper glume 1.5 mm long, lanceshaped, smooth. St Thomas Mount Rockgrass is native to Tropical Africa, Indian Subcontinent to Indo-China. Flowering: November-December.

Identification credit: Siddarth Machado Photographed in rocky outcrops Budli, Andhra Pradesh.

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