August 16, 2020 Calochortus umbellatus Oakland Star Tulip Calochortus umbellatus, Redwood Regional Park.Oakland star tulip (Calochortus umbellatus) photographed through a hand lens. Photo by Elsa de Becker. California Rare Plant Rank 4: Watch List: Plants of limited distribution More InformationEast Bay Calochortus: Photos, Figures, Facts, and Fun!
