Single Record

Comments: NEED IN SITU PHOTOS. Labeled as "Boechera lignifera," vouchers show only a few Watershed locations, all except one in pinyon-juniper foothill terrain of the lower slopes of the north Cristos or in stabilized sand dune just west: San Isobel Creek (1995, 1998), north of Arrastre Creek (1991), "near Crestone" (1935). As the exception, the species is included in a recent checklist of plants found in La Botica of La Jara canyon in Conejos Co (2020). Most of these vouchers seem to be accepted as B. lignifera by Ackerfield (2015). Windham et al. (2015), however, separate B. lignifera sensu stricto into B. lignifera (an apomictic diploid, a hybrid of undetermined progenitors) and B. kelseyana (a sexual diploid). The range of the specimens that they studied do not overlap, with only B. lignifera found in Colorado, and only on the west slope. They did not study the Watershed vouchers, so those determinations remain in the air. BONAP treats these two species as "Boechera lignifera" and shows it following the Rio Grande down into the northern third of New Mexico. Allred et al. (2020) do not find B. lignifera in the state, only B. kelseyana in the northwest corner, out of the Rio Grande drainage.