A spectacularly fruiting Koelreuteria bipinnata in the Pavilion Gardens this week. Deciduous tree, native to China (as the name suggests, but it doesn't always follow). Said to like hot summers. Sign of the times maybe? Click on picture for an enlarged view and the 3-lobed paper lantern-like fruit can be distinguished. Each contains a seed 5 - 10mm long which will gradually harden.