Rorippa

Rorippa
Rorippa amphibia
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Rosids
Order:	Brassicales
Family:	Brassicaceae
Genus:	Rorippa
Species
see text

Rorippa is a flowering plant genus in the cabbage family (Brassicaceae), containing approximately 80 species 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.

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.

Species include:

• Rorippa alpina (S. Wats.) Rydb.
• Rorippa amphibia (L.) Bess.
  
• Rorippa austriaca (Crantz) Bess.
  
• Rorippa barbareifolia (DC.) Kitagawa
• Rorippa calycina (Engel.) Rydb.
• Rorippa columbiae (Suksd. ex B.L. Rob.) Suksd. ex Howell
• Rorippa curvipes Greene
• Rorippa curvisiliqua (Hook.) Besser ex Britton
• Rorippa indica Hiern.
• Rorippa palustris (L.) Bess.
• Rorippa sarmentosa (G. Forst. ex DC) J. F. Macbr.
• Rorippa sinuata (Nutt.) Hitchc.
• Rorippa sphaerocarpa (A. Gray) Britton
• Rorippa subumbellata Rollins
• Rorippa sylvestris (L.) Bess.

References

• "Rorippa". Integrated Taxonomic Information System. http://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=22991. 
• APG II (visited June 2005)
• USDA Database