Canarina


Canarina is a genus of flowering plants within the family Campanulaceae. They are herbaceous perennial vines with bell-shaped flowers. The best known species is Canarina canariensis from the laurel forests of the Canary Islands which is grown as an ornamental plant. C. canariensis is one of a group of unrelated Canarian plants that appear to be adapted for bird pollination, including the members of the genera Isoplexis and Lotus. It was once thought that the original pollinators of these plants were sunbirds which had become extinct on the Canary Islands, explaining why some of these species are rare and considered endangered. However more recent work has shown that these plants are adequately pollinated by non-specialist flower visiting birds, particularly the Canary Islands chiffchaff and the Canary Island spectacled warbler , and in fact show some specific adaptations to infrequent pollination by these birds, such as extended flower lifespans, and a hexose-dominated sugar ratio of the nectar.
In frost-prone areas, Canarina canariensis is best grown under glass in the winter. It has gained the Royal Horticultural Society's Award of Garden Merit.

Species

include:
ImageScientific nameDistribution
Canarina abyssinica Engl.Ethiopia
Canarina canariensis Vatke Canary Islands
Canarina eminii Asch. ex Schweinf.tropical areas in East Africa