nasturtium
Concise Oxford English Dictionary © 2008 Oxford University Press:
nasturtium /nəˈstəːʃ(ə)m/
▶noun a South American trailing plant with round leaves and bright orange, yellow, or red flowers, widely grown as an ornamental. [Tropaeolum majus.]
– origin OE (originally denoting any plant of the genus Nasturtium): from L., appar. from naris ‘nose’ + torquere ‘to twist’.
'nasturtium' also found in these Oxford entries:

