n. In ornithology:n. The red-legged partridge.n. The red-legged plover or turnstone, Strepsilas interpres.n. The purple sandpiper, Tringa maritima.n. The redshank.n. In botany, the bistort, Polygonum Bistorta, so named from the redness of its stems. The name is applied also to some other species of Polygonum.