Veratrum genus --- False-hellebore family
California false hellebore (Veratrum californicum var. californicum) -- in July -- Lassen Volcanic National Park, CA white & cream
California false hellebore (Veratrum californicum var. californicum) -- in July -- Modoc National Forest, CA white & cream
California false hellebore (Veratrum californicum var. californicum) -- in July -- Routt National Forest, CO white & cream
California false hellebore (Veratrum californicum var. californicum) -- in August -- Mount Zirkel Wilderness, Jackson County, CO