Cytisus battandieri Maire

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Credits

Article from Bean's Trees and Shrubs Hardy in the British Isles

Recommended citation
'Cytisus battandieri' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/cytisus/cytisus-battandieri/). Accessed 2020-04-01.

Genus

Glossary

apex
(pl. apices) Tip. apical At the apex.
appressed
Lying flat against an object.
calyx
(pl. calyces) Outer whorl of the perianth. Composed of several sepals.
glabrous
Lacking hairs smooth. glabrescent Becoming hairless.
lax
Loose or open.
linear
Strap-shaped.
ovary
Lowest part of the carpel containing the ovules; later developing into the fruit.
standard petal
(in the flowers of some legumes) Large upper petal; also known as ‘vexillum’.
style
Generally an elongated structure arising from the ovary bearing the stigma at its tip.
trifoliolate
With three leaflets.

References

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Credits

Article from Bean's Trees and Shrubs Hardy in the British Isles

Recommended citation
'Cytisus battandieri' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/cytisus/cytisus-battandieri/). Accessed 2020-04-01.

An unarmed deciduous shrub 15 ft or more high, of rather erect habit; young shoots stout, 16 in. in diameter, covered with silky down. Leaves trifoliolate, with a main-stalk 112 to 212 in. long; stipules narrowly linear, 14 to 38 in. long, soon falling. Leaflets stalkless, obovate, tapered at the base; rounded, notched or mucronate at the apex; 112 to 312 in. long, 1 to 112 in. wide; both surfaces covered with silky white hairs giving them a silvery appearance. Racemes erect or curving upwards, about 5 in. long, terminating young leafy shoots, the flowers closely packed in a cylindrical mass on the upper half. Flowers fragrant, golden yellow, shortly stalked; calyx tubular, very silky, 13 in. long, 16 in. wide, with pointed narrowly triangular lobes; standard petal heart-shaped, 12 in. wide, downy outside; wing petals and keel glabrous, nearly as long as the standard; stamens glabrous; ovary silvery downy, style incurved. Pods erect, stiff, 112 to 2 in. long, 14 to 13 in. wide, hairy, six- or seven-seeded. Bot. Mag., t. 9528.

Native of Morocco on the middle Atlas Mountains at 5,000 to 6,000 ft altitude, where it flowers in June. It was named in 1915 and introduced to this country about 1922. It flowered at Kew under glass in 1928, and planted against a wall outside has never suffered from cold. It seems certain that it is quite hardy near London, for T. Hay grew it fully in the open in Hyde Park without protection. In June 1930, at six years old, when it had attained a height and diameter of 9 ft there, it flowered freely. It also blossomed with the late Sir Oscar Warburg at Boidier, near Epsom, where the garden is situated at 600 ft altitude, and in June 1932 a plant in the open air at Kew flowered beautifully.

In the last quarter century, C. battandieri has become a popular garden shrub. Its hardiness was amply proved in the winter of 1962-3 but, being of rather lax habit, it is perhaps seen at its best on a wall, where it will grow to 12 ft high; in the open ground it is more effective if several plants are grouped together. There is an old specimen in the R.H.S. Garden at Wilsey on Battleston Hill, 12 ft high and as much across (1968) which is completely hardy. Without attention C. battandieri deteriorates and should, especially if grown on a wall, be renewal-pruned by removing old, dishevelled growths after they have flowered and replacing them with younger growths springing from near the base. The same treatment, on a lesser scale, is successful when applied to open-ground plants. In the R.H.S. Garden, this broom only sets seed in warm summers; very occasionally a crop of self-sown seedlings is found.

In foliage C. battandieri is the most remarkable of all brooms, the leaflets being unusually large and the appressed silvery down giving the effect of shot silk; the sheen varies with the angle at which the leaf is held. It grows very vigorously and is a most beautiful addition to hardy shrubs. So distinct is it that a separate generic name, Argyrocytisus, has been suggested for it.

From the Supplement (Vol. V)

† cv. ‘Yellow Tail’. – A selection by Messrs Hillier, with longer spikes than usual, of a brighter yellow.


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