Poisonous

A hardy perennial with a creeping rhizome, and usually branched stems, it is 30-45 cm (12-18 in) tall. The large...

A large, frost-hardy perennial, 90 cm-1.5 m (3-5 ft.) tall, with smooth, hollow, purplish stems and ovate to lance late...

A hardy annual, up to 1.5 m (5 ft.) tall, it has oblong, deeply lobed, blue-green leaves. Large, lilac, pink...

A hardy, slender annual, about 90 cm-1.2 m (3-4 ft.) in height. It has narrow, lance late, greenly-grey leaves and...

A hardy perennial, growing on a stout rhizome, 60-90 cm (2-3 ft.) tall, with narrow, sword-shaped leaves. Flowers are white,...

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 perennial, 20-30 cm (8-12 in) in height, it has a thick, knotted, yellow rhizome, palmate, deeply lobed leaves,...

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

A bushy, bristly biennial, 60-90 cm (2-3 ft.) tall, with narrow lance-shaped leaves, spotted, hairy stems and dense spires of...

A biennial or short-lived perennial, reaching 2m (6 ft.) in height. The plant has a rosette of large, downy leaves...