DESERT WILLOW (Chilopsis linearis), a small North American tree of the Bignonia family (Bignoniaceae), native to stream banks and the vicinity of springs in deserts from western Texas to southern California and southward to northern Mexico. It grows usually from 8 f t. to 25 ft. high, with stems from 2 in. to to in. in diameter, slender, ascending branches, and narrow, wil low-like leaves. During summer it bears a succession of showy, funnel-shaped, pink flowers, about 1 in. long and I in. across, in profuse terminal clusters, followed in autumn by narrow seed pods about 8 in. long. It is a characteristic plant of southwestern deserts, in appearance suggestive of a slender willow with catalpa like flowers.