Nabalus crepidineus(Michx.) DC.

nodding rattlesnakeroot

WFO wfo-0000061096 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 8 separate observations

Nabalus crepidineus, photographed by Ryan Sorrells
fig. a Ryan Sorrells, CC BY 4.0 / 2022-05-26 / obs. 200859552
Nabalus crepidineus, photographed by Nathan Aaron
fig. b Nathan Aaron, CC BY 4.0 / obs. 190542461
Nabalus crepidineus, photographed by John Abrams
fig. c John Abrams, CC BY 4.0 / obs. 186235079
Nabalus crepidineus, photographed by Katie Kucera
fig. d Katie Kucera, CC BY 4.0 / obs. 170594476
Nabalus crepidineus, photographed by Summit Metro Parks
fig. e Summit Metro Parks, CC BY 4.0 / obs. 130866670
Nabalus crepidineus, photographed by Mason Heberling
fig. f Mason Heberling, CC BY 4.0 / obs. 124070863
Nabalus crepidineus, photographed by John Abrams
fig. g John Abrams, CC BY 4.0 / obs. 121359063
Nabalus crepidineus, photographed by John Abrams
fig. h John Abrams, CC BY 4.0 / obs. 67203741

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 16 botanical countries

Regions where Nabalus crepidineus is native: Arkansas, Delaware, Illinois, Indiana, Iowa, Kentucky, Maryland, Michigan, Minnesota, Missouri, New York, Ohio, Pennsylvania, Tennessee, West Virginia, Wisconsin ArkansasIllinoisIndianaIowaKentuckyMarylandMichiganMinnesotaMissouriNew YorkOhioPennsylvaniaTennesseeWest VirginiaWisconsin Delaware
Native distribution of Nabalus crepidineus, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
Arkansas ARK NORTHERN AMERICA
Delaware DEL
Illinois ILL
Indiana INI
Iowa IOW
Kentucky KTY
Maryland MRY
Michigan MIC
Minnesota MIN
Missouri MSO
New York NWY
Ohio OHI
Pennsylvania PEN
Tennessee TEN
West Virginia WVA
Wisconsin WIS

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Also published as 2 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Chondrilla crepidinea (Michx.) Poir.
  • Prenanthes crepidinea Michx.

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. USDA PLANTS Database. common name, checklist symbol PRCR. public domain. Retrieved 2026-07-13.
  4. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.