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 Park Historic District Laburnum Park Historic District The Laburnum Park Historic District is a national historic district located at Richmond, Virginia. The district encompasses 226 contributing buildings and 2 contributing structures located north of downtown Richmond. The primarily residential area developed starting in the early-20th century as one of the city's early "streetcar suburbs" and as home to several important local institutions. The buildings are in a variety of popular early-20th century architectural styles including Queen Anne and Colonial Revival. It was developed as neighborhood of middle-to-upper-class, single-family dwellings. Notable buildings include the Laburnum House (1908), Richmond Memorial Hospital (1954-1957), Richmond Memorial Hospital