Calflora 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.

Alternate Names and Sources:
None
Siskiyou Del Norte Modoc Humboldt Shasta Lassen Trinity Plumas Tehama Butte Mendocino Glenn Sierra Yuba Lake Nevada Colusa Placer Sutter El Dorado Yolo Alpine Napa Sonoma Sacramento Mono Amador Solano Calaveras Tuolumne San Joaquin Marin Contra Costa Alameda Santa Cruz Mariposa Madera San Francisco San Mateo Merced Fresno Stanislaus Santa Clara Inyo San Benito Tulare Kings Monterey San Bernardino San Luis Obispo Kern Santa Barbara Ventura Los Angeles Riverside Orange San Diego Imperial
DJJJASONAFMM

Bloom Period
The blue points on the map indicate observations in Calflora.
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Accepted by: JEPS + PLANTS + POWO
Jepson eFlora section:
USDA PLANTS group:

4 - broad endemic / strong indicator
Yellow Pine Forest, Foothill Woodland, Chaparral

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 - Taxon Report.” The Calflora Database, a non-profit organization. .

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