Crataegus scabridaSarg.

rough hawthorn

WFO wfo-0001010578 Accepted WFO 2026-06 8 photographs CC0

Plate 1 figs. a–h · 6 observations

This species has been photographed under an open licence only 6 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.

Crataegus scabrida, photographed by Étienne Lacroix-Carignan
fig. a Étienne Lacroix-Carignan, CC0 1.0 / 2019-06-15 / obs. 60963013
Crataegus scabrida, photographed by Étienne Lacroix-Carignan
fig. b Étienne Lacroix-Carignan, CC0 1.0 / obs. 60962899
Crataegus scabrida, photographed by Étienne Lacroix-Carignan
fig. c Étienne Lacroix-Carignan, CC0 1.0 / obs. 130518268
Crataegus scabrida, photographed by Étienne Lacroix-Carignan
fig. d Étienne Lacroix-Carignan, CC0 1.0 / obs. 130516396
Crataegus scabrida, photographed by Étienne Lacroix-Carignan
fig. e Étienne Lacroix-Carignan, CC0 1.0 / obs. 130488416
Crataegus scabrida, photographed by Étienne Lacroix-Carignan
fig. f Étienne Lacroix-Carignan, CC0 1.0 / obs. 91191809
Crataegus scabrida, photographed by Étienne Lacroix-Carignan
fig. g Étienne Lacroix-Carignan, CC0 1.0 / obs. 61870202
Crataegus scabrida, photographed by Étienne Lacroix-Carignan
fig. h Étienne Lacroix-Carignan, CC0 1.0 / obs. 130516411

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 13 botanical countries

Regions where Crataegus scabrida is native: Connecticut, Maine, Massachusetts, Michigan, New Brunswick, New Hampshire, New York, Nova Scotia, Ontario, Québec, Vermont, Virginia, Wisconsin ConnecticutMaineMassachusettsMichiganNew BrunswickNew HampshireNew YorkNova ScotiaOntarioQuébecVermontVirginiaWisconsin
Native distribution of Crataegus scabrida, 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
Connecticut CNT NORTHERN AMERICA
Maine MAI
Massachusetts MAS
Michigan MIC
New Brunswick NBR
New Hampshire NWH
New York NWY
Nova Scotia NSC
Ontario ONT
Québec QUE
Vermont VER
Virginia VRG
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 29 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.

  • Crataegus asperifolia Sarg.
  • Crataegus balkwillii Sarg.
  • Crataegus brainerdii Sarg.
  • Crataegus brainerdii var. asperifolia (Sarg.) Eggl.
  • Crataegus brainerdii var. cyclophylla (Sarg.) E.J.Palmer
  • Crataegus brainerdii var. egglestonii (Sarg.) B.L.Rob.
  • Crataegus brainerdii var. egglestonii (Sarg.) B.L.Rob. ex Eggl.
  • Crataegus brainerdii var. scabrida (Sarg.) Eggl.
  • Crataegus cyclophylla Sarg.
  • Crataegus dunbarii Sarg.
  • Crataegus egglestonii Sarg.
  • Crataegus hadleyana Sarg.
  • Crataegus honesta Sarg.
  • Crataegus improvisa Sarg.
  • Crataegus iterata Sarg.
  • Crataegus maribella Sarg.
  • Crataegus pinguis Sarg.
  • Crataegus scabera Sarg.
  • Crataegus scabra Sarg.
  • Crataegus scabrida var. asperifolia (Sarg.) Kruschke
  • Crataegus scabrida var. balkwillii (Sarg.) J.B.Phipps
  • Crataegus scabrida var. cyclophylla (Sarg.) Kruschke
  • Crataegus scabrida var. dunbarii (Sarg.) Kruschke
  • Crataegus scabrida var. egglestonii (Sarg.) Kruschke

and 5 more.

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.