Phaseolus rotundatus Freytag & Debouck (2002: 132) [clade B; sect. Paniculati Freytag].

TYPE: R Lépiz 410511.1 (HOLOTYPE: US-3386751; ISOTYPES: ARIZ-347215, CS-77509, F, MICH-1180113).

Because the planting of original seed resulted in a big flowering (Fig. 8) and fruiting plant in Palmira, Colombia, additional observations were made, as well as a good series of reference specimens (Salcedo-Castaño et al. 2009). It is a tall plant with scattered populations in W Mexico, the habitat of which is shrinking because of the recent expansion of agave planting. The author has doubts that the specimen HS Gentry 22509 (ARIZ-321197, NA-27957) belongs to P. rotundatus (see Freytag & Debouck 2002, p. 134).

Specimens: MEXICO. Jalisco: MC de Anda Virgen 24 (IBUG-134932), HS Gentry 22188 (ARIZ-300442). Michoacán: R Lépiz-Ildefonso 496 (IBUG-208608).