This section is from the book "The Botanical Magazine; Or, Flower-Garden Displayed", by William Curtis. Also available from Amazon: The Botanical Magazine; or, Flower-Garden Displayed, Volume I.
Cytisus Sessilifolius. Sessile-LeavED, Or Common Cytisus
Cal. 2-labiatus: 2/3 Legumen basi attenuatum.
CYTISUS sessilifolius racemis erectis, calycibus bractaea triplici, foliis floralibus sessilibus. Linn. Syst. Vegetab. ed. 14. Murr. p. 666. Ait. Kew. v. 2. p. 50.
CYTISUS glabris foliis subrotundis, pediculis brevissimis. Bauh. Pin. p. 390.
CYTISUS vulgatior, the common Tree Trefoile. Park. Parad. p. 440.
The term sessilifolius has been given to this species of Cytisus, because the leaves are for the most part sessile, that is sit close to the branches, without any or very short footstalks; such they are at least on the flowering branches when the shrub is in blossom, but at the close of the summer they are no longer so, the leaves acquiring very evident footstalks.
It is a native of the more southern parts of Europe, and though in point of size and elegance it cannot vie with its kindred Laburnum, it is a deciduous shrub of considerable beauty, rarely exceeding the height of five or six feet, and producing a great profusion of bright yellow flowers, which continue in blossom a long while; they make their appearance in May and June, and are usually succeeded by seed-vessels which produce ripe seeds, by these the plant is readily propagated.
It is one of the most common shrubs we have, as well as one of the oldest inhabitants of our shrubberies, being mentioned by Parkinson in his Parad. Terrestris.