An odd-looking plant, with very pretty, feathery flower-clusters. The hairy stem is over a foot tall and the leaves are bright yellowish-green and mostly smooth on the upper side, with hairy margins and hairy on the under side. The flowers are a warm shade of bright golden-yellow and form a handsome, rather flat-topped cluster, with long stamens, and the oblong pods are an inch long or less, flat and much broader than those of the last. The flowers are slightly sweet-scented and the whole plant exudes a faint unpleasant odor. This is conspicuous on the dreary mesas around Reno, often growing with Cleomella longipes, which it very much resembles in general appearance, except for the pods, which are quite different.

There is only one kind of Isomeris.