Wild lilac (Ceanothus integerrimus) resembles the domestic lilac, but is not related. This deciduous or semi-deciduous shrub is most abundant in rocky, well-drained soil in the ponderosa pine belt. Because of its abundance, high palatability and wide distribution, wild lilac is one of the most important summer browse species. Hence its other common name – deerbrush. These plants were growing along the Klamath River in Siskiyou County CA.