A new Hexastylis (Aristolochiaceae) with uncertain origin in the southeastern U.S.A., discovered through social media

  • Brian R. Keener University of West Alabama, Biological and Environmental Sciences
  • Gena Todia Wetland Resources Environmental Consulting


A new species of Hexastylis—H. rollinsiae—is herein described from cultivated material with uncertain origin. The discovery was facilitated through social media.


Blomquist, H.L. 1957. A revision of Hexastylis of North America. Brittonia 8:255–281.
Gaddy, L.L. 1987a. Hexastylis shuttleworthii var. harperi (Aristolochiaceae), a new variety of heartleaf from Alabama and Georgia. Sida 12:51–56.
Gaddy, L.L. 1987b. A review of the taxonomy and biogeography of Hexastylis (Aristolochiaceae). Castanea 52:186–196.
Gonella, P.M., F. Rivadavia, & A. Fleischmann. 2015. Drosera magnifica (Droseraceae): The largest New World sundew, discovered on Facebook. Phytotaxa 220(3):257–267.
Jatnika, M.F., G. Weerakoon, O. Arachchige, I.S.Noer, A. Voytsekhovich, & R. Lücking. 2019. Discoveries through social media and in your own backyard: Two new species of Allographa (Graphidaceae) with pigmented lirellae from the Palaeotropics, with a world key to species of this group. Lichenologist 51:227–233.
Keener, B.R. 2020. A new species of Hexastylis (Aristolochiaceae) from northeast Alabama (U.S.A.) with notes on the species “groups” within the genus. J. Bot. Res. Inst. Texas 10:315–323.
Moonlight, P. 2020. “Finding new species on social media.” Botanic Stories, Royal Botanic Garden Edinburgh, Scotland, 8 Jun 2020, https://stories.rbge.org.uk/archives/33585. Accessed 16 Jul 2021.
Pfingstl, T., S.F. Hiruta, T. Nemoto, W. Hagino, & S. Shimano. 2021. Ameronothrus twitter sp. nov. (Acari, Oribatida) a new coastal species of oribatid mite from Japan. Spec. Diversity 26:96–99.
Santamaria, S., H. Enghoff, & A.S. Reboleira. 2020. The first Laboulbeniales (Ascomycota, Laboulbeniomycetes) from an American millipede, discovered through social media. Mycokeys 67:45–53.
Todia, G. 2019. Flora of southeastern United States, “Hexastylis….ID…?” Facebook, 4 May 2019, 8:36 PM, https://www.facebook.com/groups/874315202585568/posts/2707459829271087. Accessed 12 July 2021.
Weakley, A.S. 2020. Flora of the southeastern United States (Edition of 20 Oct 2020). North Carolina Botanical Garden, Chapel Hill, U.S.A. http://www.herbarium.unc.edu/flora.htm
Weakley, A.S. & D.B. Poindexter. 2020. Continued recognition of Hexastylis, with two species transferred to Hexastylis from Asarum. In: Weakley, A.S., D.B. Poindexter, H.C. Medford, B.A. Sorrie, C.A. McCormick, E.L. Bridges, S.L. Orzell, K.A. Bradley, H.E. Ballard, Jr., R.N. Burwell, S.L. Lockhart, and A.R. Franck. 2020. Studies in the vascular flora of the southeastern United States. VI. J. Bot. Res. Inst. Texas 14:199–240.
Winterton, S., H.P. Guek, & S. Brooks. 2012. A charismatic new species of green lacewing discovered in Malaysia (Neuroptera, Chrysopidae): The confluence of citizen scientist, online image database and cybertaxonomy. ZooKeys 214 (214):1–11. doi:10.3897/zookeys.214.3220. PMC 3426877. PMID 22936863
How to Cite
Keener, B. R., & Todia, G. (2021). A new Hexastylis (Aristolochiaceae) with uncertain origin in the southeastern U.S.A., discovered through social media. Journal of the Botanical Research Institute of Texas, 15(2), 319-325. https://doi.org/10.17348/jbrit.v15.i2.1151