Common name(s): Washington hawthorn
Hardiness ratings: USDA zone 3~4b - 8
- Wikipedia. Online encyclopedia entry (if defined).
- Google images. Web search for photographs.
- GRIN. Taxonomical details, with common names, distribution, and synonyms.
- The Plant List. Taxonomical lookup
Links for Crataegus phaenopyrum
- All Things Plants - Community-assembled plant profile (2 varieties in database) (3 photos)
- Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (zone 4-8) (10 photos)
- Denver Botanic Gardens - Description, native range, and cultural requirements. (zone 4b) (2 photos)
- Illinois Wildflowers - Informative illustrated page with description and cultivation details, also covering range and faunal associations. (3 photos)
- Lady Bird Johnson Wildflower Center - Plant description and characteristics with notes on distribution, culture, and propagation. (32 photos)
- Missouri Botanical Garden - Plantfinder page for one of the plants growing at the garden, with usually one or more photos, horticultural information, and noteworthy characteristics. (zone 3-8) (9 photos)
- North Carolina State University factsheet - Plant profile with horticultural details and comments (zone 3-8) (4 photos)
- Rob's Plants - Plant profile with basic horticultural information and often personal observations. (zone 4-8) (2 photos)