Garden-nasturtium (Tropaeolum majus) is a vining annual or perennial plant, in the family Tropaeolaceae, native to the Andes of Peru.
It is now grown world wide for is beautiful flowers that come in shades and combinations of white, yellow, orange, red, pink, and bronze.
Furthermore, the leaves and flowers possess a taste similar to radish (Raphanus sativus) or Watercress (Nasturtium officinale), and are therefore often grown primarily as a tangy and becoming vegetable. Though the 'wild type' plants are vines, dwarf, non-vining strains have been artificially bred.
Of course, this plant's common name, Garden-nasturtium, refers to its culinary similarity to Watercress (Nasturtium officinale). The two plants are not closely related, being in separate plant families. However, the presence of mustard oils in both plants is indeed evidence of a deep homology shared by Tropaeolaceae, Brassicaceae (to which Nasturtium belongs), and several other plant families in the Order Brassicales.