Grafting growth in the vascular cambium. Occasionally, a so-called "graft hybrid" or more accurately graft chimera can occur where the tissues of the stock continue to grow within the scion. Such a plant can produce flowers and foliage typical of both plants as well as shoots intermediate between the two. The best-known example this is probably +"Laburnocytisus" 'Adamii', a graft hybrid between "Laburnum" and "Cytisus", which originated in a nursery near Paris, France in 1825. This small tree bears yellow flowers typical of "Laburnum anagyroides", purple flowers typical of "Cytisus purpureus" and curious coppery-pink flowers that show characteristics of both "parents".
Laburnum Avenue Laburnum Avenue Laburnum Avenue is a C-shaped highway in Henrico County and the city of Richmond in the U.S. state of Virginia. The highway extends from Virginia State Route 895 (SR 895) near Varina southeast of Richmond to Interstate 195 (I-195) on the North Side of the city of Richmond. Laburnum Avenue is a four-lane divided highway that connects the city's inner suburbs in eastern Henrico County. The highway also serves as a major east–west street in Richmond, on part of which the highway forms part of SR 197. Laburnum Avenue intersects all of the radial highways on the east