Its leaves are highly veined, slightly sticky, and have a puckered texture.

They are lemon yellow in colour, and resemble antirrhinums (snapdragons) in shape.

[2] In cultivation in the UK, it has gained the Royal Horticultural Society's Award of Garden Merit.

[3] It requires a sheltered, frost-free position in sun or partial shade.

A striking cultivar is 'Kentish Hero', with large red flowers which turn orange.