Other native trees include sycamore, pecan, hackberry and juniper. The riparian portion contains mostly willow, sycamore, hackberry, elm, ash and birch. They include American elm, basswood, cottonwood, green ash, bur oak, hackberry and box elder. The creek bottoms are wooded with cottonwood, elm, and hackberry. Trees like cottonwood, hackberry, juniper and oak grow along the springs on the mountain slopes. The number of rowan, grey alder, trembling poplar and hackberry is relatively high. Gathered foods included walnut and hickory nuts, and the fruits of plum, hackberry, and grape. Other recorded hosts include hackberry, oak, various members of the rose family, walnut and willow. Other native trees include ash, hackberry, and holly. The larvae of "A. celtis" feed upon the leaves and leaf buds of hackberry trees. The tree serves as a butterfly larval host particularly the hackberry emperor. Tributaries of the river are Coldwater, Hackberry, Goff, Teepee, and Pony creeks. The common hackberry is a medium-sized tree, in height, with a slender trunk. Hackberry wood is sometimes used in cabinetry and woodworking. This area supports the largest stand of hackberry trees in the region.