Trichostema laxum
{{Short description|Species of flowering plant}}
{{Speciesbox
|image =
|genus = Trichostema
|species = laxum
|authority = A.Gray
}}
Trichostema laxum is a species of flowering plant in the mint family, known by the common name turpentine weed from the foliage's scent.[https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=46992 Jepson: Trichostema laxum]{{PLANTS|id=TRLA5|taxon=Trichostema laxum|access-date=14 December 2015}}
Distribution
The annual plant is native to northern California and Oregon, at elevations below {{convert|1700|m|ft}}. It is found primarily in the Inner Northern California Coast Ranges, including the subranges of the Klamath Mountains and the Mayacamas Mountains.[https://www.calflora.org/app/taxon?crn=8033 Calflora: Distribution map in California]
It grows in gravelly streambanks or sandy soil, of the mountains and foothills in chaparral, Foothill oak woodland, and Yellow pine forest habitats. The species has an affinity for serpentine soils.
Description
Trichostema laxum is an annual herb approaching {{convert|5|dm|ft}} in maximum height.
Its aromatic foliage, with a strong turpentine odor, is coated in glandular and nonglandular hairs. The lanceolate to narrowly ovate leaves are up to 7 centimeters long.
The inflorescence is a series of clusters of flowers located at each leaf pair. Each flower has a hairy calyx of green or reddish sepals and a tubular, lipped purple corolla. The four stamens are long and curved, measuring up to 1.6 centimeters in length.
References
{{Reflist}}
External links
- [http://www.calflora.org/cgi-bin/species_query.cgi?where-calrecnum=8033 Calflora: Trichostema laxum (Turpentine weed)]
- [https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=46992 Jepson Manual eFlora (TJM2) treatment of Trichostema laxum]
- [http://plants.usda.gov/core/profile?symbol=TRLA5 USDA Plants Profile for Trichostema laxum (turpentine weed)]
- [http://calphotos.berkeley.edu/cgi/img_query?query_src=photos_index&where-taxon=Trichostema+laxum UC Photos gallery: Trichostema laxum]
{{Taxonbar|from=Q7841024}}
Category:Natural history of the California chaparral and woodlands
Category:Natural history of the California Coast Ranges
Category:Flora of the Klamath Mountains
Category:Flora without expected TNC conservation status
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