• Wind Cave National Park - Two Worlds

    Wind Cave

    National Park South Dakota

Grasses - Red Threeawn

Red Threeawn - Aristida purpurea
Red Threeawn - Aristida purpurea, A. fendleriana, A. longiseta
NPS Photo by Jim Pisarowicz
Red Threeawn is not a favorite of grazing animals. The sharp-tipped florets and abrasive awns can cause injury ot the mouths of grazing animals.

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