Strongylodon macrobotrys, the 'Jade vine', in the glasshouses at Cambridge University Botanic Garden.
Not often seen in cultivation, this plant is a member of the pea family, and is native to the Philippines. For the last several years, it has produced its spectacular floral display in Spring.
The flowers are a 'luminous' turquoise (jade?) which is notorious
for failing to reproduce correctly in photographs!