GNP nature walk 9: Sickle bush tree

Midway through the walk we bumped into the bottlebrush like flowers of the sickle bush tree. Half pink and half yellow, the flowers hung between the double pinnate leaves, which were extremely tiny.
The biological name for the sickle bush tree is Dichrostachys cinerea (dichrostachys meaning two colored) and it is also called the chinese lantern tree. i wonder why though - arent chinese lanterns always red?!