roridula
— Noun
– English
～ either of 2 species of the genus Roridula; South African viscid perennial low-growing woody shrubs
Roridulaceae
— Noun
– English
～ in some classifications included in the family Droseraceae
Rorippa amphibia
— Noun
– English
～ perennial herb found on streams and riversides throughout Europe except extreme north and Mediterranean; sometimes placed in genus Nasturtium
Rorippa nasturtium-aquaticum
— Noun
– English
～ perennial Eurasian cress growing chiefly in springs or running water having fleshy pungent leaves used in salads or as a potherb or garnish; introduced in North America and elsewhere
Rorippa
— Noun
– English
～ annual and perennial herbs of damp habitats; cosmopolitan except Antarctica
Rorippa islandica
— Noun
– English
～ annual or biennial cress growing in damp places sometimes used in salads or as a potherb; troublesome weed in some localities