Botanical name: Rottboellia cochinchinensis    Family: Poaceae (Grass family)
Synonyms: Stegosia cochinchinensis,

Itchgrass is a tall annual grass, up to 1-4 m, taller specimens often supported by stilt roots. Leaves are linear, up to 45 x 2 cm, with harsh prickly hairs on the leaf sheaths, unpleasant to the touch. The common name Itchgrass comes from these bristly leaf-sheath which can be irritating to the skin. Flower-racemes are 3-15 cm long, spike-like cylindric, hairless. Spikelets appear sunken into the main flower-stalk. Itchgrass is found in Tropical & Subtropical Africa, Asia and Australia, including the Himalayas.

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The flower labeled Itchgrass is ...