Rosaceae
Mayhaw
Crataegus opaca
- Family
- Rosaceae
- Genus
- Crataegus
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Crataegus opacaRosaceae
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Common names
By language (2)
- Chinese
- 西五月山楂
- English
- Mayhaw, Riverflat hawthorn, Western mayhaw
Synonyms
- Anthomeles opaca (Hook. & Arn.) M.Roem.
- Crataegus aestivalis Tidestr.
- Crataegus nudiflora Nutt. ex Torr. & A.Gray
- Crataegus nudiflora Nutt.
- Crataegus opica Ashe
Characteristics
- Growth habit
- Shrub, Tree
- Lifespan
- Perennial
- In the US and Canada
- Lower 48 states: native
More in Crataegus
- MedlarCrataegus germanicaRosaceae
- Common hawthornCrataegus monogynaRosaceae
- Midland hawthornCrataegus laevigataRosaceae
- AzaroleCrataegus azarolusRosaceae
- Chinese hawCrataegus pinnatifidaRosaceae
- Calycine hawthornCrataegus rhipidophyllaRosaceae
- Redhaw hawthornCrataegus sanguineaRosaceae
- Cockspur hawthornCrataegus crus-galliRosaceae
- Crataegus orientalisRosaceae
- Manzanita tejocoteraCrataegus mexicanaRosaceae
- Hungarian thornCrataegus nigraRosaceae
- Crataegus ambiguaRosaceae
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.