Lomatium grayi

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Lomatium grayi
Lomatium grayi 3293.JPG
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Apiales
Family: Apiaceae
Tribe: Selineae
Genus: Lomatium
Species: L. grayi
Binomial name
Lomatium grayi
(Coult. & Rose) Coult. & Rose

Lomatium grayi, commonly known as Gray's biscuitroot, Gray's lomatium, or milfoil lomatium, is a perennial herb of the family Apiaceae. It is native to Western Canada in British Columbia, and the Western United States, including from the Eastern Cascades and northeastern California to the Rocky Mountains. [1] [2]

It is a perennial herb found growing in dry rocky banks and slopes.[3] It has a lifespan of 5–7 years.


Lomatium grayi has glabrous stems that split at the ground, and a long, thick taproot. It flowers from April to July with 1–20 compound umbels, each with hundreds of yellow flowers. [3] [4]

  • Lomatium grayi var. depauperatum — Gray's biscuitroot (M.E. Jones) Mathias; endemic to northeastern Nevada and northwestern Utah. [5]
  • Lomatium grayi var. grayi — Gray's biscuitroot; [6] [4]


The plant was used as a food source by the Northern Paiute people in Oregon, new tender stems eaten raw, and the roots as a winter 'starvation food.' [7]

See also[edit]

Habitats include:


  1. ^ USDA: Lomatium grayi; info + native distribution map . accessed 1.8.2013
  2. ^ Consortium of California Herbaria (Jepson): Lomatium grayi distribution. accessed 1.8.2013
  3. ^ a b Lomatium grayi in Jepson Flora Project (eds.) Jepson eFlora, info + detailed distribution map . accessed 1.8.2013
  4. ^ a b Burke Museum—WTU Herbarium: Lomatium grayi — info + images . accessed 1.8.2013
  5. ^ USDA Plants Profile: Lomatium grayi var. depauperatum — (Gray's biscuitroot) . accessed 1.8.2013
  6. ^ USDA: Lomatium grayi var. depauperatum — (Gray's biscuitroot) . accessed 1.8.2013
  7. ^ Native American Ethnobotany (University of Michigan - Dearborn) . accessed 1.8.2013

External links[edit]