title: Calochortus umbellatus
text: # Calochortus umbellatus
  
  Calochortus umbellatus is a flowering plant in the lily family found only in California in the United States. The common name for this species is Oakland mariposa lily or Oakland star-tulip.
  
  ## Distribution
  
  The species is a California endemic of limited distribution. It grows primarily in the San Francisco Bay Region, often on serpentine soils, with a few isolated populations in Humboldt, Mendocino, and Nevada Counties.
  
  ## Description
  
  Calochortus umbellatus is a branching perennial herb up to 25 cm tall. Inflorescence is sub-umbellate with 3-10 white or pale pink flowers.
  
  This species is included on the California Native Plant Society list 4.2 of rare and endangered plants.
  
  