This section, closely allied to the cushion irises, includes several garden hybrids with species in section Oncocyclus, known as Regelio-cyclus irises.

This sort of environment has generated thousands of wild bulbs, which have become the source material for many popular garden hybrids in this country.

It is a parent of some notable garden hybrids, including Mahonia x media 'Charity'.

Includes all other garden hybrids.

The newer garden hybrids of today are highly poisonous because they are full of toxic alkaloids and should never be eaten.

A valuable garden hybrid is known as E. x macrantha C.K.Schneid.

The vast majority of garden hybrids have descended from a few parent species.

Several forms of Iochroma (some wild collected, some garden hybrids) have been given cultivar names.

This is found in various Begonia species and garden hybrids.

Their garden hybrids have been popular among gardeners, beginning with Clematis x jackmanii, a garden standby since 1862; more hybrid cultivars are being produced constantly.