Tucker, G.C., D.K. Trock, and J.M. Annis. 2023. Cytisus. Pp. 250-252. In Flora of North America Editorial Committee. 2023a. Flora of North America north of Mexico. Volume 11.1, Magnoliophyta: Fabaceae, part 1. Oxford Univ. Press, New York, NY. 541 pp. Google Scholar