SHOOTS: 1 m or more high, short-pubescent, especially near apices, green to pale-green, the internodes 3-4 em long. LEAVES: obovate to elliptic-circular 3-5 cm long, 1.5-3 cm wide, mostly glabrous. INFLORESCENCES: staminate spikes with 4-5(-7) fertile segments, with 20-40 flowers per segment in 3 rows; pistillate spikes with 3-5 fertile segments, with 6-15 flowers per segment. FLOWERS: slightly pubescent. FRUIT: white, glabrous, ca. 5 mm in diameter. HOSTS: Populus, Salix, Platanus, Fraxinus, Alnus, Juglans, and other deciduous trees. NOTES: Sub-Mogollon Riparian woodlands: all AZ cos. except Apache; 50-1700 m (100-5500 ft); Dec-Mar; CA, s NM, w TX; Baja C., Chih., Son., Mex. REFERENCES: Hawksworth, Frank G. 1994. Viscaceae. J. Ariz. – Nev. Acad. Sci. Volume 27(2), 241-245.