''Lomatium repostum'' is an uncommon species of flowering plant in the

carrot family Apiaceae or Umbelliferae is a family of mostly aromatic flowering plants named after the type genus '' Apium'' and commonly known as the celery, carrot or parsley family, or simply as umbellifers. It is the 16th-largest family of flowering plan ...

known by the common name Napa biscuitroot, or Napa lomatium. It is endemic to California, where it is known only from the northrthern California Coast Ranges surrounding the northern San Francisco Bay Area. It often grows in plant communities on

serpentine soil Serpentine soil is an uncommon soil type produced by weathered ultramafic rock such as peridotite and its metamorphic derivatives such as serpentinite. More precisely, serpentine soil contains minerals of the serpentine subgroup, especially anti ...

Description

''Lomatium repostum'' is a spreading perennial herb growing up to half a meter long from a slender taproot. There is generally no stem, the leaves and inflorescence emerging at ground level. The leaf blades are made up of sharp-toothed oval leaflets each up to 6 centimeters long. The inflorescence is an umbel of yellowish-green to purplish flowers.

External links

Jepson Manual Treatment - ''Lomatium repostum''USDA Plants Profile: ''Lomatium repostum''''Lomatium repostum'' - Photo gallery
repostum Endemic flora of California Natural history of the California chaparral and woodlands Natural history of the California Coast Ranges Natural history of the San Francisco Bay Area Taxa named by Willis Linn Jepson Taxa named by Mildred Esther Mathias Flora without expected TNC conservation status {{Apiaceae-stub