Rorippa Explained

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^[1] to 85^{[2] [3] [4]} species in the genus.

Species include:^{[1] [5] [6] [7] [8]}

• 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^[9]
• 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

External links

• Brassicaceae: APG II. Missouri Botanical Garden.

Notes and References

1. http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=128745 Rorippa.
2. http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=10616 Rorippa.
3. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=128745 Rorippa.
4. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:30012174-2#children Rorippa Scop. on Plants of the Word Online
5. http://www.ars-grin.gov/cgi-bin/npgs/html/splist.pl?10543 GRIN Species Records of Rorippa.
6. https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=22991 Rorippa.
7. http://plants.usda.gov/core/profile?symbol=RORIP Rorippa.
8. http://www.efloras.org/browse.aspx?flora_id=1&start_taxon_id=128745 Rorippa species list.
9. De Lange . P.J. . Heenan . P.B. . Townsend . A.J. . 2009 . Rorippa laciniata (Brassicaceae), a new addition to the flora of New Zealand . New Zealand Journal of Botany . 47 . 2 . 133–137 . 10.1080/00288250909509800. 83609780 . free . 2009NZJB...47..133D .