Washington Hawthorn (Crataegus phaenopyrum (L. f.) Medik.)
↑Range - Expand
Legend | Color |
Native | |
Extirpated | |
Expanded | |
Native or Not Present | |
Introduced or Not Present | |
Native or Expanded | |
Expanded or Not Present | |
Native or Expanded or Not Present |
This tentative map is based on our own research. It may have limited data on Canada and/or Mexico, and there is some subjectivity in our assignment of plants as introduced vs. expanded. Read more in this blog post.
Although the northwestern populations are clearly introduced, there was some subjectivity in choosing to classify the populations in Texas and New England as introduced or expanded. We chose to mark the Texas population as introduced because it is separated from this species native range by considerable distance, and nearby populations are not expanding. We marked populations in Michigan and New England expanded because they are closer to native populations. However, they are escapes from cultivation and could easily be marked introduced as well.
↑Links & External Resources
• Crataegus phaenopyrum (Washington Hawthorn) | Illinois Wildflowers (About This Site)
• Crataegus phaenopyrum (Washington hawthorn) | USDA PLANTS Database (About This Site)
• Crataegus phaenopyrum | Go Botany (About This Site)
• Washington Hawthorn | iNaturalist (About This Site)
• Crataegus phaenopyrum (Washington Hawthorn) | Missouri Botanical Garden Plant Finder (About This Site)
• Crataegus phaenopyrum | Biota of North America Project (BONAP) (About This Site)
• Crataegus phaenopyrum | NatureServe Explorer (About This Site)
• Crataegus phaenopyrum | Flora of North America (About This Site)
• Washington Hawthorn | Maryland Biodiversity Project (About This Site)
• Crataegus phaenopyrum (L. f.) Medik. (Washington Hawthorn) | Digital Atlas of the Virginia Flora (About This Site)