Trillium tennesseense

Trillium tennesseense, the Tennessee trillium,[2] is a species of flowering plant in the family Melanthiaceae. It is found exclusively within two counties in northeastern Tennessee.[3] Due to its limited range, it is designated as a critically imperiled species.[1] The State of Tennessee lists this species as endangered.[4]

Trillium tennesseense

Critically Imperiled  (NatureServe)[1]
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Liliales
Family: Melanthiaceae
Genus: Trillium
Species:
T. tennesseense
Binomial name
Trillium tennesseense
E.E.Schill. & Floden, 2013

Trillium tennesseense is a member of T. subg. Sessilium, the sessile-flowered trilliums. It most resembles T. oostingii but the two species differ with respect to several features. In particular, T. tennesseense has filaments nearly equal in length to its ovary (vs. less than half the length), a shorter ovary (2–4 mm vs. 6–16 mm), and stigma lobes distinctly longer than the ovary (vs. equal to the ovary length).[5] When the plant is in full bloom, the flower emits a smell reminiscent of old-fashioned shoe polish.[6]

The name Trillium tennesseense E.E.Schill. & Floden is regarded by some as a synonym for Trillium lancifolium Raf..[7]

References
  1. "Trillium tennesseense". NatureServe Explorer. NatureServe. Retrieved 22 September 2019.
  2. Stritch, Larry. "Tennessee Trillium (Trillium tennesseense)". United States Forest Service. Retrieved 22 September 2019.
  3. "Trillium tennesseense". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014. Retrieved 22 September 2019.
  4. Crabtree, Todd. "Tennessee Natural Heritage Program: Rare Plant List 2016" (PDF). Tennessee Department of Environment and Conservation. Retrieved 24 February 2020.
  5. Schilling, Edward E.; Floden, Aaron; Farmer, Susan B. (June 2013). "A New Sessile-Flowered Trillium Species from Tennessee". Castanea. 78 (2): 140–147. doi:10.2179/12-043.
  6. Warfield, Meredith (April 9, 2014). "New Trillium Species Discovered in Eastern Tennessee". The Appalachian Voice. Retrieved 22 September 2019.
  7. "Trillium tennesseense". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew. Retrieved 22 September 2019.


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