Tripora divaricata, ‘Karigane-sou’

　In Japan, there are many plants named after wild birds. *Tripora divaricata, Karigane-sou in Japanese* is one such plant. The *karigane (lesser white-fronted goose)* is a type of goose that migrates to Japan in autumn, characterised by a golden ring around its eyes. In the past, geese in genera were referred to as *karigane*. Whilst there are various theories, the one suggesting that the shape of the flower resembles a goose in flight seems the most convincing.

　It flowers from summer through to autumn, but as they do not flower much during periods of extreme heat, now that it has cooled down slightly is the best time to see them.

　The flowers have very long stamens and pistils that curve downwards. It is said that when a bumblebee or similar insect lands on the flower, the weight causes it to bend; whilst the bee is feeding on the nectar, the stamens and pistils brush against its back, efficiently transferring pollen so that it can be carried to another flower.