Calceolaria integrifolia, the bush slipperwort, is a species of flowering plant belonging to the genus Calceolaria and native to Argentina and Chile.[1]
This evergreen subshrub grows to 1.8 meters (6 feet) tall. Its leaves are highly veined, slightly sticky, and have a puckered texture. The flowers appear in clusters throughout the spring and summer. They are lemon yellow in colour, and resemble antirrhinums (snapdragons) in shape.[1]
In cultivation in the UK, it has gained the Royal Horticultural Society's Award of Garden Merit.[2] 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.[3]