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Rorippa aquatica (Eaton) E.J. Palmer & Steyermark. Lake Cress. Phen: May-Aug. Hab: Shallow water of swamps and lake and reservoir margins. Dist: VT west to MN, south to s. GA, FL, and e. TX, widely scattered and probably dispersed by waterfowl.

Origin/Endemic status: Native

Other Comments: See Al-Shehbaz & Bates (1987) and Les, Anderson, & Cleland (1995) for additional information on this interesting plant. Apparently most closely related to Rorippa, and here included in that genus.

Synonymy: = Fl4, FNA7, K3, K4, Mi, NE, NY, Tn, Va; = Armoracia aquatica (Eaton) Wiegand – F, G, GW2; = Armoracia lacustris (A.Gray) Al-Shehbaz & V.M.Bates – C, Al-Shehbaz & Bates (1987), Al-Shehbaz (1988a), Rollins (1993); = Neobeckia aquatica (Eaton) Greene – Ar, Il, K1, S, WH3, Les, Anderson, & Cleland (1995); = Roripa americana (A.Gray) Britton – S13; = Rorippa americana (A.Gray) Britton

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: OBL
  • Eastern Mountains and Piedmont: OBL
  • Great Plains: OBL
  • Midwest: OBL
  • Northcentral & Northeast: OBL

Heliophily: 7

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image of plant© Jared Gorrell, some rights reserved (CC BY-NC), uploaded by Jared Gorrell source CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© psweet, some rights reserved (CC BY-SA), uploaded by psweet source CC-BY-SA | Original Image ⭷
image of plant© Trently,Allan J, some rights reserved (CC BY-NC), uploaded by Trently,Allan J source CC-BY-NC | Original Image ⭷


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