''Lomatium laevigatum'', commonly known as slickrock biscuitroot, is a

perennial In horticulture, the term perennial ('' per-'' + '' -ennial'', "through the year") is used to differentiate a plant from shorter-lived annuals and biennials. It has thus been defined as a plant that lives more than 2 years. The term is also ...

herb Herbs are a widely distributed and widespread group of plants, excluding vegetables, with savory or aromatic properties that are used for flavoring and garnishing food, for medicinal purposes, or for fragrances. Culinary use typically distingu ...

of the

Apiaceae 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 p ...

family. It grows in basalt cliffs east of the Cascades crest in south-central Washington to Oregon. Its range is limited and considered threatened in Washington State.

References

laevigatum Flora of the Northwestern United States Endemic flora of the United States Taxa named by John Merle Coulter Flora without expected TNC conservation status {{Apiaceae-stub