30 September 1992.
Arizona, United States
Locality: Pima Co., General Hitchcock Campground area along stream channel, Santa Catalina Mts.
Coordinates: 32.3781, -110.6811
(Map it)
Environment description: In partial shade along stream and trail, often twining upon shrubs and trees. Loamy soil. Pine-oak woodland with Quercus arizonica, Q. hypoleucoides, Pinus ponderosa, Prunus serotina subsp. virens, Rhus radicans.
Number of plants sampled: 30
Comment: Collectors: B. Bearly, D. Birt, M. Johnson, M. Mack