Cytisus purpureus), which bears some shoots typical of the one species, some of the other, and some which are a peculiar mixture of both "parents".

Remarkably, most branches will also produce coppery-pink flowers on short (8–15 cm) racemes, which are midway between the two "parents"; the leaves on these shoots are also intermediate.

In older specimens, the proportion of broom and mixed tissues tends to decline, and the laburnum to predominate.

It requires moderately fertile, moist but well-drained soil and should be grown in a sunny position to flower well.

[citation needed] + Crataegomespilus is a graft-chimera between hawthorn (Crataegus) and medlar (Mespilus) which arose in a similar manner.