Campsis radicans (L.) Seemann (trumpet vine) is native to eastern North America, whereas Campsis grandiflora (Thunb.) K. Schumann (Chinese trumpet vine) is native to eastern Asia (Raulston and Grant, 1994; Wen and Jensen, 1995). Trumpet vine was introduced into cultivation in 1640, whereas Chinese trumpet vine was first observed by Engelbert Kaempfer in Japan in 1691 or 1692 (Stearn, 1953), but was not brought into cultivation in Europe until 1800 (Raulston and Grant, 1994). The first hybrid between the two species was described in 1859 (Stearn, 1953) as Tecoma tagliabuana in honor of the brothers Alberto and Carlo Tagliabue in who’s nursery the plant was discovered. Rehder (1905) described a hybrid between the two species as Tecoma hybrida Jouin. (Tecoma radicans ×chinensis). The plant described in the article was sent to the Arnold Arboretum by the P.J. Berckmans Company of Augusta, GA, under the name of Tecoma hybrida, indicating that the hybrid was known in Georgia as early as 1905. Campsis radicans and Campsis chinensis, while able to produce fertile hybrids, tend to demonstrate a high level of morphological and genetic divergence (Wen and Jensen, 1995).
‘Rutcam’ trumpet vine [Campsis ×tagliabuana (Vis.) Rehder] is an attractive ornamental vine with reddish-orange flowers that has been released by The University of Georgia.
Anderson, E. 1933 Trumpet creepers. Arnold Arbor. Bull. of Popular Info. 1:1–5. Harvard Univ., Boston
Natural Resources Conservation Service 2006 Invasive and noxious weeds. 28 June 2016. <http://plants.usda.gov/java/invasiveOne?startChar=C>.
Raulston, J.C. & Grant, G. 1994 Trumpetvines (Campsis) for landscape use. Proc. South. Nursery Res. Conf. 39:359–363
Rehder, A. 1905 Tecoma hybrida, Jouin, p. 93–95. In: C.S. Sargent (ed.). Trees and shrubs: Illustration of new or little know ligneous plants. Vol. 1. Houghton, Mifflin and Co., Boston, MA
Royal Horticultural Society (RHS) 2001 RHS colour chart. Royal Hort. Soc., London, UK
Stearn, W.T. 1953 Campsis × Tagliabuana. Botanical Magazine 169. Tab. 198
Wen, J. & Jensen, R.K. 1995 Morphological and molecular comparisons of Campsis grandiflora and Campsis radicans (Bignoniaceae), an eastern Asian and eastern North American vicariad species pair Plant Syst. Evol. 196 173 183
U.S. Department of Agriculture (USDA) 2012 USDA plant hardiness zone map. 28 June 2016. <www.planthardiness.ars.usda.gov>.