Banksiae Lutea
The flowers are small, double, and cup-shaped, about 2 cm in diameter, composed of more than 40 delicately scented yellow petals, borne in clusters. Flowering is abundant but occurs only once per season.
The plant grows rambling and very vigorous, with strong, dense stems, reaching up to 600 cm in height and 250 cm in width. It is disease-resistant, completely thorn-free along the branches, and is almost evergreen, rarely losing all of its medium green, glossy leaves.
Cultivated in China since ancient times, the plant is named after Joseph Banks, who discovered it. It was introduced to Europe by William Kerr in the early 19th century.