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Tropaeolum tuberosum
Mashua is a tuberous, climbing perennial from the Andes, grown mainly for its edible tubers and occasionally for its orange and yellow flowers. It needs cool to mild conditions and protection from frost.
Tropaeolum tuberosum (mashua, see below for other names) is a species of flowering plant in the family Tropaeolaceae, grown in the Andes, particularly in Peru and Bolivia, and to a lesser extent in Ecuador as well as in some areas of Colombia, for its edible tubers, which are eaten cooked or roasted as a vegetable. It is a minor food source, especially for native Amerindian populations. Mashua is a herbaceous perennial climber growing to 2–4 m (7–13 ft) in height. It is related to garden nasturtiums, and is occasionally cultivated as an ornamental for its brightly coloured tubular flowers. The leaves are peltate, roundly five-lobed with a petiole that twines weakly but is not truly a tendril. The root is tuberous.
In its native range, mashua is mainly cultivated for its edible tubers. Still, it has ornamental value in the temperate zone because of its trailing habit and showy, bi-colored tubular flowers, which appear in summer and autumn. The sepals are orange-red, while the petals are bright yellow. In areas prone to frost, some protection is required in winter. The cultivar T. tuberosum var. lineamaculatum 'Ken Aslet' has gained the Royal Horticultural Society's Award of Garden Merit.
Raw mashua tuber is bitter due to glucosinolates, but the bitterness diminishes after cooking, freezing, or pounding. The tubers comprise as much as 75 percent of the mature plants by dry weight.
Tropaeolum beuthii · Tropaeolum incisum · Nasturtium · Canary Creeper · Flame Nasturtium · Tropaeolum tricolor · Nasturtium
Text excerpted from the Wikipedia article Tropaeolum tuberosum by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
