An overview of New Mexican Boechera (Brassicaceae) including three new species and thirteen new nomenclatural combinations

  • Michael D. Windham Duke University
  • Kathleen M. Pryer Duke University
  • Loreen Allphin Brigham Young University


To provide a nomenclatural foundation for the treatment of Boechera in the soon-to-be-published Flora of New Mexico, we here discuss the current taxonomic situation in the genus, name three new species (B. austromontana, B. pseudoconsanguinea, and B. quadrangulensis), provide new combinations for B. kelseyana, B. thompsonii, and B. villosa as subspecies of B. crandallii, and propose subspecific names under B. perennans for nine taxa currently treated as species.


ALEXANDER, P.J., M.D. WINDHAM, J.B. BECK, I.A. AL-SHEHBAZ, L. ALLPHIN, & C.D. BAILEY. 2013. Molecular phylogenetics and taxonomy of the genus Boechera and related genera (Brassicaceae: Boechereae). Syst. Bot. 38:192–209.
ALEXANDER, P.J., M.D. WINDHAM, J.B. BECK, I.A. AL-SHEHBAZ, L. ALLPHIN, & C.D. BAILEY. 2015. Weaving a tangled web: Divergent and reticulate speciation in Boechera fendleri sensu lato (Brassicaceae: Boechereae). Syst. Bot. 40:572–596.
AL-SHEHBAZ, I.A. 2003. Transfer of most North American species of Arabis to Boechera (Brassicaceae). Novon 13:381–391.
AL-SHEHBAZ, I.A. & M.D. WINDHAM. 2010. Boechera. In: Flora of North America Editorial Committee, eds. Flora of North America north of Mexico. Oxford University Press, New York, U.S.A. and Oxford, U.K. 7:347–412
BECK, J., P. ALEXANDER, L. ALLPHIN, I. Al-SHEHBAZ, C. RUSHWORTH, C.D. BAILEY, & M.D. WINDHAM. 2011. Does hybridization drive the transition to asexuality in diploid Boechera (Brassicaceae)? Evolution 66:985–995.
HOLMGREN, N.H. 2005. Brassicaceae. In: N.H. Holmgren, P.K. Holmgren, & A. Cronquist, eds. Intermountain flora: vascular plants of the Inter-mountain West, U.S.A. The New York Botanical Garden Press, Bronx, NY, U.S.A. 2(pt. B):174–418.
LI, F.-W., C.A. RUSHWORTH, J.B. BECK, & M.D. WINDHAM. 2017. The Boechera Microsatellite Website: an online portal for species identification and determining hybrid parentage. Database 2017 (1):
Mulligan, G.A. 1995. Synopsis of the genus Arabis (Brassicaceae) in Canada, Alaska, and Greenland. Rhodora 97:109–163.
ROLLINS, R.C. 1941. Monographic study of Arabis in western North America. Rhodora 43:289–325, 348–411, 425–481.
ROLLINS, R.C. 1993. The Cruciferae of continental North America. Palo Alto: Stanford University Press.
RUSHWORTH, C.A., B.-H. SONG, C.-R. LEE, & T. MITCHELL-OLDS. 2011. Boechera, a model system for ecological genomics. Molec. Ecol. 20:4843–4857.
SCHILLING, M.P., Z. GOMPERT, P.G. WOLF, F.-W. LI, & M.D. WINDHAM. 2018. Admixture, evolutionary, and variation in reproductive isolation in the Boechera puberula clade. BMC Evol. Biol. 18:61.
TURLAND, N.J., J.H. WIERSEMA, F.R. BARRIE, W. GREUTER, D.L. HAWKSWORTH, P.S. HERENDEEN, S. KNAPP, W.-H. KUSBER, D.-Z. LI, K. MARHOLD, T.W. MAY, J. MCNEILL, A.M. MONRO, J. PRADO, M.J. PRICE, & G.F. SMITH, eds. 2018. International code of nomenclature for algae, fungi, and plants (Shen-zhen Code) adopted by the Nineteenth International Botanical Congress Shenzhen, China, July 2017. Regnum Veg. 159. Glashütten: Koeltz Botanical Books. DOI
WELSH, S.L. 2003. Cruciferae. In: S.L. Welsh, N.D. Atwood, S. Goodrich, & L.C. Higgins, eds. A Utah flora, 3rd ed. Brigham Young University, Provo, UT, U.S.A. Pp. 249–300.
WINDHAM, M.D. & I. AL-SHEHBAZ. 2006. New and noteworthy species of Boechera (Brassicaceae). I. Sexual diploids. Harvard Pap. Bot. 11:65–92.
WINDHAM, M.D. & I.A. AL-SHEHBAZ. 2007a. New and noteworthy species of Boechera (Brassicaceae) II: apomictic hybrids. Harvard Pap. Bot. 11:257–274.
WINDHAM, M.D. & I.A. AL-SHEHBAZ. 2007b. New and noteworthy species of Boechera (Brassicaceae) III: additional sexual diploids and apomictic hybrids. Harvard Pap. Bot. 12:235–257.
WINDHAM, M.D., J.B. BECK, F.-W. LI, L. ALLPHIN, J.G. CARMAN, D.A. SHERWOOD, C.A. RUSHWORTH, E. SIGEL, P.J. ALEXANDER, C.D. BAILEY, & I.A. AL-SHEHBAZ. 2015. Searching for diamonds in the apomictic rough: a case study involving Boechera lignifera (Brassicaceae). Syst. Bot. 40:1031–1044.
How to Cite
Windham, M. D., Pryer, K. M., & Allphin, L. (2022). An overview of New Mexican Boechera (Brassicaceae) including three new species and thirteen new nomenclatural combinations. Journal of the Botanical Research Institute of Texas, 16(1), 9-24.