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Owen Johnson (2024)
Recommended citation
Johnson, O. (2024), '+Laburnocytisus' from the website Trees and Shrubs Online (treesandshrubsonline.
Graft hybrids beteen Cytisus and Laburnum, intermediate in appearance between the parents. One taxon is known.
Graft hybrids between laburnums and brooms are only known to have arisen on a single occasion, to create the chimaera +Laburnocytisus ‘Adamii’. (There are no known natural, sexual crosses between these genera, hence it should be treated as a cultivar.)