Common hawthorn

Quick look

Crataegus monogyna, known as common hawthorn, may tree, whitethorn, one-seed hawthorn, or single-seeded hawthorn, is a species of flowering plant in the rose family, Rosaceae. It grows to about 10 metres tall, producing hermaphrodite flowers in late spring. The berry-like pomes contain a stone-encased seed.

• It belongs to the Rosaceae family. ^iNaturalist
• USDA PLANTS describes it as a shrub / a tree with a perennial life cycle. ^{USDA PLANTS}
• USDA PLANTS lists it as introduced in the lower 48 states and records it in 25 states. ^{USDA PLANTS}
• NatureServe lists it as not native to Oregon and Washington. ^NatureServe
• In Oregon, most iNaturalist sightings of it in flower come in April–May. ^iNaturalist
• In Washington, most iNaturalist sightings of it in flower come in April–May. ^iNaturalist
• USDA PLANTS lists its flower color as purple. ^{USDA PLANTS}
• USDA PLANTS gives its bloom period as mid spring. ^{USDA PLANTS}
• USDA PLANTS lists a mature height of about 20 ft. ^{USDA PLANTS}
• iNaturalist has 2,114 research-grade sightings of it in Oregon, ranking #78 among the 110 flowers on our Oregon list. ^iNaturalist
• iNaturalist has 1,976 research-grade sightings of it in Washington, ranking #99 among the 110 flowers on our Washington list. ^iNaturalist