For Philadelphus
Hu, S.-Y. 1954-1956. A monograph of the genus Philadelphus. J. Arnold Arb. 35: 276-333; 36: 52-109; 37: 15-90.
Hufford. 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.
Weakley, A.E. 2002. Evolutionary relationships within the genus Philadelphus L. (Hydrangeaceae). Master's thesis, Biology Dept., Univ. of North Carolina, Chapel Hill, NC.
Weakley, A.S., and J. Henrickson. 2016. Philadelpus. In Flora of North America Editorial Committee. 2016. Flora of North America north of Mexico. Volume 12, Magnoliophyta: Vitaceae to Garryaceae. Oxford Univ. Press, New York, NY. 603 pp.
Cite as...