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Taxon  Report  
Trichostema laxum  A. Gray
Turpentine weed
Trichostema laxum is an annual herb that is native to California, and found only slightly beyond California borders.
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Bloom Period
Genus: Trichostema
Family: Lamiaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Ultramafic affinity: 4 - broad endemic / strong indicator

Communities: Yellow Pine Forest, Foothill Woodland, Chaparral

Name Status:
Accepted by JEF + PLANTS

Information about  Trichostema laxum from other sources
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora


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Trichostema: Trichostema: from trichos, "hair," and stema, "stamens," and alluding to the hair-like stamens.

[Wikipedia] Range, Habitat, Affinity for Serpentine Soils: Trichostema laxum is a species of flowering plant in the mint family, known by the common name turpentine weed from the foliage's scent.[1][2] Distribution The annual plant is native to northern California and Oregon, at elevations below 1,700 metres (5,600 ft). It is found primarily in the Inner Northern California Coast Ranges, including the subranges of the Klamath Mountains and the Mayacamas Mountains.[3] It grows in gravelly streambanks or sandy soil, of the mountains and foothills in chaparral, Foothill oak woodland, and Yellow pine forest habitats.[1] The species has an affinity for serpentine soils.[1] (link added by Mary Ann Machi)

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 07/20/2024).