For Campsis
Fischer, Theisen, & Lohmann. 2004. In Kubitzki, K., ed. 2004. The families and genera of vascular plants. VI. Flowering plants – Dicotyledons – Celastrales, Oxalidales, Rosales, Cornales, Ericales. Springer, Berlin. 489 pp.
Gentry, A.H. 1992. Bignoniaceae: Part II (Tribe Tecomeae). Flora Neotropica 25(2): 1-370.
Manning, S.D. 2000. The genera of Bignoniaceae in the southeastern United States. Harvard Papers in Botany 5: 1-77.
Wen, J., and R.K. Jansen. 1995. Morphological and molecular comparisons of Campsis grandiflora and C. radicans (Bignoniaceae), and eastern Asian and eastern North American vicariad pair. Pl. Syst. Evol. 196: 173-183.
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