Rorippa is a genus of flowering plants in the family Brassicaceae, native to Europe through central Asia, Africa, and North America. Rorippa species are annual to perennial herbs, usually with yellow flowers and a peppery flavour. They are known commonly as yellowcresses. Rorippa formerly included several species of watercress, now placed in the genus Nasturtium. In particular, R. nasturtium-aquaticum (now N. officinale) and R. microphylla (now N. microphyllum) are often referred to as species of Rorippa. There are about 75 to 85 species in the genus. Species include: Rorippa alpina (S.Wats.) Rydb. – alpine yellowcress Rorippa amphibia (L.) Bess. – great yellowcress Rorippa aquatica – lakecress Rorippa austriaca (Crantz) Bess. – Austrian yellowcress, Austrian fieldgrass Rorippa backeri (O.E. Schulz) B. Jonsell Rorippa barbareifolia (DC.) Kitagawa – hoary yellowcress Rorippa benghalensis Rorippa calycina (Engel.) Rydb. – persistent-sepal yellowcress Rorippa cantoniensis – Chinese yellowcress Rorippa columbiae (Suksd. ex B.L.Rob.) Suksd. ex Howell – Columbian yellowcress, Columbia watercress Rorippa crystallina – MacKenzie River yellowcress Rorippa curvipes Greene – bluntleaf yellowcress Rorippa curvisiliqua (Hook.) Besser ex Britton – curvepod yellowcress, western yellowcress Rorippa divaricata Rorippa dubia Rorippa elata Rorippa globosa – globe yellowcress Rorippa icarica Rech.f. Rorippa indica Hiern. – variableleaf yellowcress Rorippa intermedia – intermediate yellowcress Rorippa islandica – northern yellowcress, northern marsh yellowcress Rorippa laciniata Rorippa microtitis – Chihuahuan yellowcress Rorippa palustris (L.) Bess. – common yellowcress, yellow watercress, marshcress Rorippa portoricensis – Puerto Rico yellowcress Rorippa ramosa – Durango yellowcress Rorippa sarmentosa (G.Forst. ex DC) J.F.Macbr. – longrunner Rorippa sessiliflora – stalkless yellowcress Rorippa sinuata (Nutt.) Hitchc. – spreading yellowcress, west yellowcress Rorippa sphaerocarpa (A.Gray) Britton – roundfruit yellowcress Rorippa subumbellata Rollins – Tahoe yellowcress, Lake Tahoe yellowcress Rorippa sylvestris (L.) Bess. – creeping yellowcress, yellow fieldcress, keek Rorippa tenerrima – Modoc yellowcress Rorippa teres – southern marsh yellowcress References External links Brassicaceae: APG II. Missouri Botanical Garden. Brassicaceae genera