Spiranthes parksii Correll (1947:400)
Navasota ladies-tresses
Taxonomy & Nomenclature
Synonym/s: Sprianthes parksii Correll, 1947
Considered a synonym of S. cernua by (POWO, 2025). Walters (2005) found that the two could be distinguished morphologically but not genetically.
Conservation Status
Last record: 1945 (Ripley, 1975:44)
Rediscovered in 1978 (Li & Adair, 1997:125)
IUCN RedList status: Vulnerable
Distribution
Texas, USA
Biology & Ecology
Hypodigm
Media
References
Ayensu, E. S. and Defilipps, R. A. (1978). Endangered and Threatened Plants of the United States: 1-403. Smithsonian Institution and WWF-US, Washington DC.
Catling, P. M. and McIntosh, K. L. (1979). Rediscovery of Spiranthes parksii Correll. SIDA 8(2): 188-193. [Abstract]
Goedeke, T., Sharma, J., Treher, A., Frances, A. & Poff, K. (2015). Spiranthes parksii. The IUCN Red List of Threatened Species 2015: e.T64177005A64177008. https://dx.doi.org/10.2305/IUCN.UK.2015-4.RLTS.T64177005A64177008.en. Downloaded on 25 May 2016.
Humphreys, Aelys M., Govaerts, Rafaël, Ficinski, Sarah Z., Lughadha, Eimear Nic and Vorontsova, Maria S. (2019). Global dataset shows geography and life form predict modern plant extinction and rediscovery. Nature Ecology & Evolution 3: 1043-1047. https://doi.org/10.1038/s41559-019-0906-2 [Supplementary Dataset 1]
Li, Shiyou and Adair, Kent T. (1997). Species Pools of Seed Plants in Eastern Asia and North America. Nacogdoches, Texas: AIthur Temple College of Forestry. [chapter 8: Species extinction, pp. 121-131]
Pace, M. C. and Cameron, K. M. (2017). Systematic Botany 42: 640-669.
Ripley, S. Dillon. (1975). Report on endangered and threatened species of the United States. House Document 94-51: 1-200 [44].
U.S. Fish and Wildlife Service. (1984). Navasota Ladies’-tresses Recovery Plan. U.S. Fish and Wildlife Service. Albuquerque, New Mexico.
U.S. Fish and Wildlife Service. (2009). Navasota Ladies’-tresses (Spiranthes parksii) 5-Year Review: Summary and Evaluation. U.S. Fish and Wildlife Service, Austin Ecological Field Office. Austin, TX.
Walters, C. (2005). Genetic relationships among Spiranthes parksii and congeneric species. Texas A&M University, College Station, TX.
Wonkka, C. L., Rogers, W. E., Smeins, F. E., Hammons, J. R., Ariza, M. C. and Haller, S. J. (2012). Biology, Ecology, and Conservation of Navasota ladies’ tresses (Spiranthes parksii Correll) An Endangered Terrestrial Orchid of Texas. Native Plants Journal 13(3): 236-243.