M. ×cookei (punicea × quintuplinervia)

This hybrid is widely grown. It is perennial, producing spreading mats. ‘Old Rose’ is a particularly good form, with quintuplinervia ‘Kaye’s Compact’ as one of the parents. Back-crosses with M. punicea have been made, with the aim of producing plants with the brilliant red flowers of M. punicea, but perennial instead of monocarpic.

M. ×kongboensis (simplicifolia × sulphurea)

M. castanea × georgei

M. huanglongensis × punicea

M. pinnatifolia × horridula subsp. horridula

M. regia × paniculata

M. staintonii × taylorii