Phaseolus dasycarpus Freytag & Debouck (2002: 120) [clade A; sect. Pedicellati (Benth.) Freytag].

TYPE: R Hernández-Magaña 872 (HOLOTYPE: F-1845525; ISOTYPE: MEXU n.v.) .

This member of the Pedicellati (Mercado-Ruaro et al. 2009) seems to thrive only in the region of contact between the Sierra Madre Oriental and the Trans-Mexican Volcanic Belt in eastern central Mexico. It grows in pine-oak and montane forests with frequent mist at 1900–2200 m. The current number of populations—less than ten (Mercado-Ruaro et al. 2009; Debouck 2019b)—suggests considering this species as endemic.

Specimens: MEXICO. Hidalgo: O Alcántara-Ayala 2721 (MEXU-794839). Veracruz: M Nee 25183 (F-1916163).