The tuberous roots of this variety have a dark purple skin and a white flesh that is slightly pinkish just under the skin. This plant is much cultivated in South America for its tuberous, edible, sweet roots usually eaten like fruits. It can grow up to 2 m high. Leaves spatulate-deltoid, pubescent,...

  Rhizomatous clumping species. Leaves sword-like, arranged in a fan. Flowers star-shaped, yellow, in dense scorpioid inflorescences. South American mountain prairies. Drained soil. Half shade. Hardy. Rare in cultivation. Rhizome 14 cm pot  

~~Herbaceous perennial up to 70 cm high. Leaves ovate-lanceolate, toothed. Flowers 6-7 cm in diameter, bell-shaped, white. Hardy. In Winter it dies back to the roots. Half shade. Manchuria and Japan. Bare rooted (winter) 16 cm pot 

Climber-creeping with numerous, daisy-like, about 5 cm in diameter, red-orange flowers during many months each year. Full sunshine or half shade. Very fast growing. Easy. Messico. 14 cm pot   

Leaves solitary, or rarely in pairs, up to 50 cm long, channelled, transversely striped, looking like tusks emerging from the soil. Flowers in dense inflorescences at soil level. Eastern Africa. Not hardy. Young plants. Bare root  16 cm pot   

Stems succulent, up to 25 cm high. Leaves fleshy, peltate, roundish-ovate, acuminate at apex, 9 cm in diameter. Colombia and Peru. Very beautiful and elegant. Not hardy. Keep in a shaded place. Abundant waterings in summer. 8 cm pot