This reference is not to a single clematis, but is included here for the sake of completeness. The name Havering Hybrids was given by the breeder Graham Hutchins (UK) to cover all his various crosses of marata x marmoraria in or after 1987.

Group:	Forsteri group
Raised by:	G Hutchins
Country of origin:	United Kingdom
Other name(s):	None known
Database entry: 2181