Oxypolis ternata(Nutt.) A.Heller

piedmont cowbane

WFO wfo-0000384595 Accepted WFO 2026-06 7 photographs CC0 / CC BY

Plate 1 figs. a–g · 4 observations

This species has been photographed under an open licence only 4 times, so some figures below are different views of the same plant, taken on the same day, rather than different individuals. They are usually different parts of it: the leaf, the flower, the bark.

Oxypolis ternata, photographed by Alan Weakley
fig. a Alan Weakley, CC0 1.0 / 2020-10-17 / obs. 100825654
Oxypolis ternata, photographed by Alan Weakley
fig. b Alan Weakley, CC0 1.0 / obs. 100779452
Oxypolis ternata, photographed by Alan Weakley
fig. c Alan Weakley, CC0 1.0 / obs. 54343403
Oxypolis ternata, photographed by Alan Weakley
fig. d Alan Weakley, CC0 1.0 / obs. 100779464
Oxypolis ternata, photographed by Alan Weakley
fig. e Alan Weakley, CC0 1.0 / obs. 100825661
Oxypolis ternata, photographed by Alan Weakley
fig. f Alan Weakley, CC0 1.0 / obs. 54343411
Oxypolis ternata, photographed by Alpha Wolf
fig. g Alpha Wolf, CC BY 4.0 / obs. 66192809

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 5 botanical countries

Regions where Oxypolis ternata is native: Florida, Georgia, North Carolina, South Carolina, Virginia FloridaGeorgiaNorth CarolinaSouth CarolinaVirginia
Native distribution of Oxypolis ternata, 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.
RegionTDWG codeContinent
Florida FLA NORTHERN AMERICA
Georgia GEO
North Carolina NCA
South Carolina SCA
Virginia VRG

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 8 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.

  • Archemora ternata (Nutt.) Nutt.
  • Neurophyllum longifolium Torr. & A.Gray
  • Peucedanum ternatum Nutt.
  • Sataria linearis Raf.
  • Sataria linearis var. longipes Raf.
  • Sison marginatum Michx.
  • Sium marginatum Poir.
  • Tiedemannia ternata (Nutt.) J.M.Coult. & Rose

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. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. 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.