Phaseolus xolocotzii A. Delgado (2000: 429) [clade B; sect. Paniculati Freytag].

TYPE: R Torres-Colin 7700 (HOLOTYPE: MEXU n.v.) .

A member of the Paniculati known by scattered populations along the internal slope of W Sierra Madre del Sur up to the S slope of the Trans-Mexican Volcanic Belt, in dry pine-oak forest at 1200–1900 m. The author has doubts that the specimen DG Debouck 2346 (BR, COL-58966, M, SI, US-3168881) belongs to P. xolocotzii (see Freytag & Debouck 2002, p. 137).

Specimen: MEXICO. México: GB Hinton 2484 (K-118678).