14 genera appear to have no threatened cultivars in UK horticulture.
If you do know of a cultivar in any of the following genera which you believe is threatened or you know was last on sale in the UK before 1987, please
let us know as we may not have a record of it.
Genera with no threatened cultivars
Billardiera, Blepharocalyx, Chamelaucium, Cortusa, Cosmos, Encephelartos, Ferula, Gerbera, Haloragis, +Laburnocytisus, Olsynium, Orixa, Pahcypodium, Sollya.
Last updated 04/04/12