Silphium compositumMichx.

kidneyleaf rosinweed

WFO wfo-0000066443 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Silphium compositum, photographed by Lauren Gillett
fig. a Lauren Gillett, CC BY 4.0 / 2022-06-03 / obs. 202984260
Silphium compositum, photographed by Lauren Gillett
fig. b Lauren Gillett, CC BY 4.0 / obs. 198354235
Silphium compositum, photographed by Michael J. Papay
fig. c Michael J. Papay, CC BY 4.0 / obs. 169026907
Silphium compositum, photographed by Michael J. Papay
fig. d Michael J. Papay, CC BY 4.0 / obs. 163426547
Silphium compositum, photographed by Alan Weakley
fig. e Alan Weakley, CC0 1.0 / obs. 139744733
Silphium compositum, photographed by Athena Philips
fig. f Athena Philips, CC BY 4.0 / obs. 135146031
Silphium compositum, photographed by Alan Weakley
fig. g Alan Weakley, CC0 1.0 / obs. 86815074
Silphium compositum, photographed by Alan Weakley
fig. h Alan Weakley, CC0 1.0 / obs. 86771862

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 8 botanical countries

Regions where Silphium compositum is native: Alabama, Florida, Georgia, North Carolina, South Carolina, Tennessee, Virginia, West Virginia AlabamaFloridaGeorgiaNorth CarolinaSouth CarolinaTennesseeVirginiaWest Virginia
Native distribution of Silphium compositum, 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
Alabama ALA NORTHERN AMERICA
Florida FLA
Georgia GEO
North Carolina NCA
South Carolina SCA
Tennessee TEN
Virginia VRG
West Virginia WVA

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 14 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.

  • Silphium compositum f. compositum
  • Silphium compositum subsp. compositum
  • Silphium compositum subsp. ovatifolium (Torr. & A.Gray) C.R.Sweeney & T.R.Fisher
  • Silphium compositum subsp. reniforme (Raf. ex Nutt.) C.R.Sweeney & T.R.Fisher
  • Silphium compositum subsp. venosum (Small) C.R.Sweeney & T.R.Fisher
  • Silphium compositum var. compositum
  • Silphium compositum var. ovatifolium Torr. & A.Gray
  • Silphium compositum var. reniforme (Raf.) Torr. & A.Gray
  • Silphium compositum var. venosum (Small) Kartesz & Gandhi
  • Silphium lapsuum Small
  • Silphium orae Small
  • Silphium ovatifolium (Torr. & A.Gray) Small
  • Silphium reniforme Raf. ex Nutt.
  • Silphium venosum Small

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.