05 August 1979.
Morelos, Mexico
Locality: Hualzurco area, 1.3 km from Amayuca.
Coordinates: 18.7000, -98.7667
(Map it)
Elevation: 1200m.
Comment: From a field of a forage legume and interplant of tomatillos and beans. Feral plants, probably from previous years seed.