The species chinensis is a deciduous climber with heart-shaped leaves and yellow flowers. The female form, more recently introduced, proves to have deeper coloured flowers than the male. Henryi, a new species introduced from China by Wilson, has evergreen, coriaceous, toothed leaves, which have rich colour in autumn.
A compact shrub from the Himalayas; whitish leaves, violet flowers.
The species moupinensis is new. It is a deciduous climber of rapid growth, well suited to the pergola. The tubular flowers are of a greenish yellow tinge, marked with purple.
This is much superior to B. halimifolia, the Groundsel tree. It is a small, free-growing evergreen tree with dark green foliage and whitish flowers in June.