Rorippa islandica subsp. fernaldiana (Butt. & Abbe) Hult.
 
FamilyCruciferae — APG family: Brassicaceae
SynonymsRorippa islandica var. microcarpa (Regel) Fern., Rorippa palustris var. williamsii (Britt.) Hult., Nasturtium palustre var. microcarpa Regel., Rorippa williamsii Britt., Rorippa islandica var. fernaldiana Butt. & Abbe
DescriptionSimilar to subsp. islandica, but often branched at top only; stem glabrous or somewhat hispid at base; upper leaves less deeply cleft; silicles vary in form from nearly orbicular to subcylindric, on pedicels of varying length.
EcologyWet places, roadsides, waste places. Described from Fort Fairfield, Maine.
Taxonomy
notes
Forms hybrid swarms with R. hispida. Broken line on circumpolar map indicates range of other subspecies.
Hultén's Flora About

This is a digital representation of Eric Hultén’s ‘Flora of Alaska and Neighboring Territories: A Manual of the Vascular Plants’, which was published by Stanford University Press in 1968. The book was digitized by C. Webb (at UAMN) as part of the Flora of Alaska project, with funding by the US NSF (Grant 1759964 to Ickert-Bond & Webb), and with permission of Stanford University Press. Data and images © 1968 Board of Trustees of the Leland Stanford Jr. Univ. Usage licence: Creative Commons BY-NC-SA 4.0. NB: You may find OCR errors; please refer to the hard-copy if in doubt.