Biology:Trichostema lanatum

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Short description: Species of shrub

Trichostema lanatum

Apparently Secure (NatureServe)[1]
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Lamiaceae
Genus: Trichostema
Species:
T. lanatum
Binomial name
Trichostema lanatum

Trichostema lanatum, also known as woolly bluecurls,[2] is a small evergreen shrub or sub-shrub native to arid coastal chaparral regions of California down to the northern tip of Baja California, Mexico.

Description

Trichostema lanatum is many-branched and grows to 1.5 m (5 ft) tall, with narrow, pointed green leaves. The smooth-petaled blue flowers are borne in dense clusters, with the stem and calyces covered in woolly hairs of blue, pink, or white. Flowers are present from March to June.[3]

Spanish explorers in California called the plant romero, the Spanish term for rosemary, and that common name is still sometimes used in Mexico.[4]

Uses

Trichostema lanatum is cultivated as an ornamental plant, and several cultivars have been developed.[4] It attracts hummingbirds and bumblebees.[5]

Native Americans used it for a variety of medicinal and other purposes.[6]

Its leaves and flowers make a flavorful tea.[4]

Indigenous medicinal use

Trichostema lanatum was incorporated by the Chumash to help facilitate the healing process of menstruation and birth, as well as a general disinfectant and treatment for rheumatism.[7] When tested against an E.Coli ▵tolC mutant, the plant exhibited anti-bacterial properties.[8][9] Studies have also shown anti-inflammatory properties against pro-inflammatory cytokine TNF-ɑ and anti-bacterial properties against macrophages and gram-postivie bacteria.[10]

This species and Trichostema lanceolatum, a related species, were both also used by other California Indigenous tribes in the form of tea or crushed leaves to treat a range of ailments including common olds, body aches, skin disorders, digestive problems, and malaria.[11] The two species differ in smell, anatomy, and location found.[12][13] Indigenous tribes used T. lanatum to treat the same ailments as T. lanceolatum.[11] Woolly bluecurls and other native plants have historically been used by Indigenous peoples in a holistic approach to medical care, which typically considers patient health and well-being at the intersection of biology, psychology, and culture, and manipulating the biochemical properties of native plants to treat the ailment.[14]

Future studies of woolly bluecurls and other plants used by Indigenous peoples for medicinal purposes will need to focus on the use of such plants in a broader cultural system of care. Such work can be challenging, given the historical, systematic erasure of Indigenous wisdom that has been a primary function of settler colonialism.

References

  1. 1.0 1.1 "Trichostema lanatum" (in en). https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.148862/Trichostema_lanatum. 
  2. "Trichostema lanatum". Natural Resources Conservation Service PLANTS Database. USDA. https://plants.usda.gov/core/profile?symbol=TRLA3. 
  3. "Calflora: Trichostema lanatum" (in en). http://www.calflora.org/cgi-bin/species_query.cgi?where-taxon=Trichostema+lanatum. 
  4. 4.0 4.1 4.2 Rogers, D. (2001). Romero or Woolly Blue Curls. Double Cone Quarterly.
  5. Santa Monica Mountains Plant of the Month
  6. Ethnobotany
  7. Adams, James D.; Garcia, Cecilia (March 2006). "Women's Health Among the Chumash". Evidence-Based Complementary and Alternative Medicine 3 (1): 125–131. doi:10.1093/ecam/nek021. ISSN 1741-427X. PMID 16550233. 
  8. Allison, Brittany J.; Allenby, Mark C.; Bryant, Shane S.; Min, Jae Eun; Hieromnimon, Mark; Joyner, P. Matthew (2017-03-19). "Antibacterial activity of fractions from three Chumash medicinal plant extracts and in vitro inhibition of the enzyme enoyl reductase by the flavonoid jaceosidin" (in en). Natural Product Research 31 (6): 707–712. doi:10.1080/14786419.2016.1217201. ISSN 1478-6419. PMID 27482826. https://www.tandfonline.com/doi/full/10.1080/14786419.2016.1217201. 
  9. Fleming, Matthew (2014-03-21). "Extracts of Trichostema lanatum inhibit the growth of gram-positive bacteria and an Escherichia coli ΔtolC mutant strain". Seaver College Research and Scholarly Achievement Symposium. https://digitalcommons.pepperdine.edu/scursas/2014/oral/37. 
  10. Fleming, Matthew C.; Hester, Victoria; Allison, Brittany J.; Foster, Majie C.; Nofziger, Donna; Joyner, P. Matthew (2018-03-21). "Immunomodulatory and Antibacterial Properties of the Chumash Medicinal Plant Trichostema lanatum". Medicines 5 (2): 25. doi:10.3390/medicines5020025. ISSN 2305-6320. PMID 29561753. 
  11. 11.0 11.1 "USDA Plants Database". https://plants.usda.gov/home/plantProfile?symbol=TRLA4. 
  12. "Plant of the Month Page" (in en). https://www.smmtc.org/plantofthemonth/Vinegar_Weed.php. 
  13. "bluecurls (Genus Trichostema)" (in en). https://www.inaturalist.org/taxa/54876-Trichostema. 
  14. Koithan, Mary; Farrell, Cynthia (2010-06-01). "Indigenous Native American Healing Traditions". The Journal for Nurse Practitioners 6 (6): 477–478. doi:10.1016/j.nurpra.2010.03.016. ISSN 1555-4155. PMID 20689671. 

Wikidata ☰ Q7841025 entry