SafePlants

Crataegus (Hawthorn)

Hawthorns are a diverse group of shrubs and small trees, with many species displaying a variety of interesting characteristics.

Considerations for Pets

• Many Hawthorn species form large, dense thickets, potentially hindering access to certain areas.
• Most species of Crataegus bear fruit, often red or yellow, which could be attractive to pets.

Considerations for Children

• Many Hawthorn species form large, dense thickets, potentially hindering access to certain areas.
• Most species of Crataegus bear fruit, often red or yellow, which could be attractive to children.

Nomenclature and Taxonomy

• Scientific Name: Crataegus
• Common Names: Hawthorn, Red Haw, English Hawthorn, Common Hawthorn, One-Seed Hawthorn

Distribution and Habitat

• Crataegus phippsii is native to south-central British Columbia, Washington State, and Montana.

Morphology and Growth Habits

• Hawthorns range from large shrubs to small trees, sometimes forming dense thickets.
• Crataegus phippsii develops in an erect manner, becoming a tree with a rounded form as it matures, reaching up to 7m in height.

Related Species and Varieties

• Crataegus phippsii O'Kennon
• Crataegus austromontana Beadle – valley head hawthorn
• Crataegus castlegarensis J.B. Phipps & R.J.O. Kennon – hawthorn
• Crataegus chrysocarpa fireberry hawthorn, red haw, roundleaf hawthorn
• Crataegus sheila-phippsiae var. sheila-phippsiae Sheila Phipps hawthorn
• Crataegus gracilior J. B. Phipps
• Crataegus atrovirens J.B. Phipps & O'Kennon
• Crataegus attrita Beadle
• Crataegus lanata Beadle - Hoary Hawthorn
• Crataegus okennonii Phipps - O'kennon's Hawthorn
• Crataegus okanaganensis J.B. Phipps & O'Kennon var. okanaganensis – Okanagan hawthorn
• Crataegus virdis 'Winter King' - Winter King Hawthorn

Further Information

• James B. Phipps Hawthorn Research Collection
• USDA Plant Hardiness Map
• TERMIUM (Government of Canada's terminology and linguistic data bank)