Yellow

A perennial, it has linear leaves, growing from the rounded corm. Fragrant, lilac flowers, with deeper purple veins and yellow...

A medium-sized evergreen tree, it grows to about 9 m (30 ft.) and has brown, papery bark and ovate, leathery...

A perennial which grows on a rhizomatous rootstock. The palmate leaves develop with, or just after, the yellow-brown flowers. Fruits...

A deciduous tree, growing to 15 m (50 ft.) with dark grey, furrowed bark, and Narrow, glossy, serrated-edged leaves. The...

A hardy annual, growing to 1 m (3 ft.) high, with finely toothed, long, ovate leaves and shaggy, thistle-like, yellow...

A low-growing annual to 50 cm (20 in) with hairy, slightly sticky leaves and large orange-yellow daisy-like flowers throughout summer...

A shrub which grows to 2 m (6 ft.), with sharp spines on the stems and small oval leaves. Clusters...

A perennial whose fleshy shoots are eaten as a delicacy. If left uncut it develops feathery leaves to a height...

A perennial subshrub, 1 m (3 ft.) in height, leaves are silvery-grey, downy and finely divided. Flowers are yellowish-green, tiny...

A shrubby semi-evergreen (it loses foliage in winter in cold climates and as the plants age), it grows to 1...