This section is from the book "Handbook Of Hardy Trees, Shrubs, And Herbaceous Plants", by W. Botting Hemsley. Also available from Amazon: Handbook of hardy trees, shrubs, and herbaceous plants.
Leaves alternate, imparipinnate. Flowers irregular, polygamous, yellow, in large terminal panicles. Calyx 5-partite, with valvate sepals. Petals 3 or 4, clawed, with two scales at the base, the position of the fifth or suppressed one empty. Stamens 5 to 8. Capsule vesiculate, inflated, three-lobed, dehiscing loculicidally, with 1 or 2 seeds in each cell. Named in honour of a German botanist.
1. K. paniculata. - A small tree, handsome when in flower, but of rather irregular growth. The leaves are composed of about 7 or 9 deeply toothed leaflets. It is the only species known, a native of China, producing its flowers in this country in great abundance in June or July.