For Toxicodendron
Gillis, W.T. 1971. The systematics and ecology of poison-ivy and the poison-oaks (Toxicodendron, Anacardiaceae). Rhodora 73: 72-159, 161-237, 370-443, 465-540.
Greene, E.L. 1905. Segregates of the genus Rhus. Leaflets Bot. Obs. & Crit. 1: 114-144.
Pell et al. 2011. In Kubitzki, K., ed. 2011. The families and genera of vascular plants. X. Flowering plants – Eudicots – Sapindales, Cucurbitales, Myrtaceae. Springer, Berlin. 436 pp.
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