Mashua, Anu

Tropaeolum tuberosum

Physical Characteristics

Tropaeolum tuberosum is a PERENNIAL CLIMBER growing to 2 m (6ft) by 2 m (6ft) at a fast rate. See above for USDA hardiness. It is hardy to UK zone 8 and is frost tender. It is in flower from June to October, and the seeds ripen from June to October. The species is hermaphrodite (has both male and female organs) and is pollinated by Insects. The plant is self-fertile. It is noted for attracting wildlife. Suitable for: light (sandy) and medium (loamy) soils and prefers well-drained soil. Suitable pH: mildly acid and neutral soils. It cannot grow in the shade. It prefers moist soil.

Distribution

S. America - Peru, Bolivia.

Habitats

Woodland Garden Sunny Edge; Dappled Shade; Shady Edge; Cultivated Beds;

Edible Uses

Edible Parts: Flowers Leaves Root Edible Uses: Tubers - cooked[1, 2]. A peppery flavour, it is rather unpleasant to many tastes[27, 34, 37]. The flavour can be improved somewhat by freezing the tubers after they have been cooked, they are then considered to be a delicacy by many people[183]. We have also noticed an improvement in the flavour if the tubers are harvested after they have been frosted, though if the frost is too heavy they can damage the tubers[K]. Other reports suggest half-drying the tubers before use[27, 34, 97, 183]. The tubers can be up to 10cm long and 5cm thick[260]. They are high in vitamin C[196]. The dried tuber contains up to 16% protein[196]. Leaves - raw or cooked as a vegetable[183, 196]. Flowers - raw[183, 196].

Medicinal Uses

Anaphrodisiac Vitamin C The tuber is considered to be an anaphrodisiac in the Andes, reducing sexual desire. Many men, therefore, refuse to eat it, whilst recommending it for use by women![196]. Clinical trials have indicated a reduction of up to 45% in some male hormones when the tuber forms a considerable part of the diet, but no loss in fertility has been observed[196].

Known Hazards

None known