†+Laburnocytisus adamii at Cathays Cemetery

Grid reference ST 18054 78488
Common name Adam's laburnum
Common name Broom laburnum
Origin Garden origin
Deciduous Yes
Status Rare
Map section W
Planted by Malcolm Frazer c.1995
Height 7M May 2021
Girth 82cm @ 0.8M
Reference 673

†This has not been fully identified; it may be a normal Laburnum tree.

This tree is on the north side of section W, towards the south of the cemetery.

+Laburnocytisus adamii bark

+Laburnocytisus adamii bark
late April 2021

+Laburnocytisus adamii bud1

+Laburnocytisus adamii flower buds
mid April 2021

+Laburnocytisus adamii leaf1

+Laburnocytisus adamii leaves
late April 2021

+Laburnocytisus adamii bud2

+Laburnocytisus adamii flower buds & leaves
late April 2021

+Laburnocytisus adamii flower1

+Laburnocytisus adamii in flower
mid May 2021

General tree description

+Laburnocytisus adamii is a small tree, up to around 7 metres in height. It is a graft-hybrid between Laburnum (Laburnum anagyroides) and Purple broom (Cytisus purpureus). A horticultural curiosity, it has shoots typical of each parent and some which are intermediate between the parents. Most branches have foliage resembling laburnum - three leaflets 3 to 6 cm long - but there are also clusters of broom-like shoots, also with three leaflets, though 1 cm long and a darker green. Flowering is in late spring or early summer, consisting of long (20 to 30 cm) clusters of yellow laburnum flowers, as well as dense clusters of purple broom flowers, and some coppery-pink flowers which are midway between the two.

W.W. Pettigrew, Cardiff's first Parks Superintendent, writing in the 1905 Guide to Roath Park, gave the following description of Adam's laburnam: "It is not a natural species at all, but what is known as a "graft-hybrid". This tree is said to have originated with a French nurseryman, Jean Louis Adam, as a result of grafting Cytisus purpureus (one of the Brooms) on Laburnum Vulgare, (the Golden Chain). The peculiarity of L. Adami is that it invariably bears three distinct kinds of bloom - one a dull purplish flower borne on a long raceme, another is the typical flower of the common Golden Chain, whilst the third is the flower of the ordinary Cytisus purpureus, and quite distinct from the other two, both in colour and inflorescence."