Rare flowers like the intermediate mariposa lily, grow there. Rare wildflowers include the alkali mariposa lily. Spring wildflowers include the redbush monkey flower, Mariposa lily, and canyon sunflower. Calochortus luteus, the yellow mariposa lily, is a mariposa lily endemic to California. Other vegetative species include such wildflowers as yellow mariposa lily, "Calochortus luteus". There are also numerous understory forbs and wildflowers including the yellow mariposa lily ("Calochortus luteus"). Among the wildflowers documented in the watershed is the yellow mariposa lily, "Calochortus luteus". Among the diverse wildflowers present is the yellow mariposa lily, "Calochortus luteus". "Calochortus" (mariposa lily) may be sold as a mixture or as cultivars. An example of wildflowers in the Snell Creek watershed is yellow mariposa lily, "Calochortus luteus". One example of a native wildflower found here is the "Yellow Mariposa Lily". The common name for this species is Oakland mariposa lily or Oakland star-tulip. One notable plant is Peck's mariposa lily, a type of "Calochortus" with lavender petals.