Shasta snow-wreath is a rare species not know to science until 1992. Endemic to Shasta County, California, often on limestone embankments, in moist shady areas, this deciduous shrub grows to around 6 ft. tall spreading by underground rootstocks. Looking something like ocean spray or a delicate ninebark, heart shaped leaves with toothed edges are alternately arranged on the slender branches. The flowers are a starburst of white anthers in early spring surrounded by green petal-like sepals. A lovely addition to a woodland planting where it thrives in light shade with some summer water.