Calflora Taxon Report
Trichostema lanceolatum Benth.
Vinegarweed
Trichostema lanceolatum is an annual herb that is native to California, and also found elsewhere in western North America.

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
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Accepted by: JEPS + PLANTS + POWO
Jepson eFlora section:
eudicot
USDA PLANTS group:
Dicot

Occurs usually in non wetlands, occasionally in wetlands
Coastal Sage Scrub, Northern Oak Woodland, Southern Oak Woodland, Foothill Woodland, Chaparral

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

[Wikipedia] Odor, Insect Pollen Source,Uses: The common name 'vinegarweed' originated due to its foliage containing volatile oils that have a strong vinegar odor. The oils have phytotoxic properties, which help the plant compete by killing or injuring other plant species.[4] Uses The plant is an important a pollen source for native bees and other insects. When a pollinating insect alights on the lower lobes of the corolla, and inserts its mouth parts into the nectar-containing lower section of the same tube, the narrow corolla portion above is straightened and snaps rapidly downward brushing pollen onto the insect's back.[6] The volatile oils make it unpalatable to grazing and foraging animals.[7] Medical plant The indigenous peoples of California used this as a traditional medicinal plant, as a cold and fever remedy, a pain reliever, and a flea insect repellent.[8][9] (link added by Mary Ann Machi)

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

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