Bistort
A hardy perennial with a stout, twisted rhizome, it has a clump of broad, ovate basal leaves, from which the ...
Jacob’s ladder
A hardy, clump-forming perennial, 30-90 cm (1-3 ft.) tall, it grows on a creeping rootstock, with pinnate leaves divided into ...
American mandrake
A hardy perennial with a creeping rhizome, and usually branched stems, it is 30-45 cm (12-18 in) tall. The large ...
Plantain
A small, undistinguished perennial, 40 cm (16 in) high, it has a basal rosette of ovate leaves and cylindrical spikes ...
Black pepper
A perennial climber, growing to 6 m (20 ft.), with a strong, woody stem and ovate, prominently-veined, dark-green leaves. It ...
Pokeweed
A large, frost-hardy perennial, 90 cm-1.5 m (3-5 ft.) tall, with smooth, hollow, purplish stems and ovate to lance late ...
Boldo
An aromatic, dioecious, evergreen tree growing to 6-7 m (19-23 ft.), it is the sole species of its genus. It ...
Perilla
A half-hardy annual with broadly ovate, deeply-veined leaves, reddish stems and small spikes of white flowers in summer. There are ...
Passion flower
A hardy perennial, climbing plant on a woody stem, to 8 m (26 ft.), it clings to its support with ...
Opium poppy
A hardy annual, up to 1.5 m (5 ft.) tall, it has oblong, deeply lobed, blue-green leaves. Large, lilac, pink ...
