Cambridge Encyclopedia » Cambridge Encyclopedia Vol. 53

nasturtium

species

An annual or perennial, trailing or climbing by twining leaf-stalks, native to Mexico and temperate South America; leaves rounded or lobed, stalk attached to centre of blade; flowers large, slightly zygomorphic, roughly trumpet-shaped with five petals and a backward-projecting spur, in shades of yellow, orange, and scarlet. Various species and numerous cultivars are grown for ornament. (Genus: Tropaeolum, 90 species. Family: Balsaminaceae.)

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