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It is a hardy perennial, about 30-60 cm (1-2 ft.) in height, the stems are erect, woody at the base,...

An annual or biennial, growing to 60-90 cm (2-3 ft.), it has a rank, unpleasant smell and coarsely toothed, grey-green,...

A hardy, twining, herbaceous climber, it has clinging hairy stems and 3-7 lobed palmate leaves. Male and female flowers are...

An evergreen subshrub, 60 cm (2 ft.) in height, it has linear, silver-grey leaves and clusters of yellow button-shaped flowers...

A tall, impressive annual, up to 3 m (10 ft.) in height, with erect stems and oval, hairy leaves. The...

A deciduous tree or shrub, up to 5 m (16 ft.) in height, it has smooth brown bark and obovate...

A hardy perennial, growing up to 1.2 m (4 ft.), the leaves are pinnate, divided into 9-17 oval leaflets; the...

There is only one species in the genus. A deciduous tree growing to 40 m (130 ft.), it has lobed,...

A graceful hardy perennial, growing to 1 m (3 ft.), with red-tinged, wiry stems, bronze-green, three-palmate leaves and irregularly star-shaped...

A hardy, clump-forming perennial, it grows to 75 cm (30 in) and has deeply divided palmate leaves. Large, round, purple-pink...