SimplePlant

Apiaceae

Cous biscuitroot

Lomatium cous (S.Watson) J.M.Coult. & Rose

Family
Apiaceae
Genus
Lomatium

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Cous biscuitroot: The broad bracts of the involucels are characteristic of this species.
Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, from Wikimedia Commons

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Common names

By language (1)
English
Cous biscuitroot, Cous' biscuit-root, Cous-root desert-parsley

Synonyms

  • Cogswellia circumdata (S.Watson) M.E.Jones
  • Cogswellia cous (S.Watson) M.E.Jones
  • Cogswellia montana M.E.Jones
  • Lomatium circumdatum (S.Watson) J.M.Coult. & Rose
  • Lomatium montanum J.M.Coult. & Rose
  • Peucedanum circumdatum S.Watson
  • Peucedanum cous S.Watson
  • Peucedanum montanum (J.M.Coult. & Rose) Blank.

Flowers

Flower colour
yellow (USDA PLANTS Database)

Characteristics

Growth habit
Forb/herb
Lifespan
Perennial
In the US and Canada
Canada: native, Lower 48 states: native

Photos

More in Lomatium

Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.