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Family: rosaceae
Common name(s): Russian Hawthorn, main page
Hardiness ratings: USDA zone 4 - 8 
General resources
Links for Crataegus ambigua
- Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (zone 4-8)
- Denver Botanic Gardens - Description, native range, and cultural requirements. (zone 4)
 (8 photos)
- Paghat's Garden - Illustrated articles by a gardener in the Pacific Northwest, with background and personal observations. (5 photos). Also a page for another instance.
- Trees and Shrubs Online - Reference page curated by the International Dendrology Society with descriptive characteristics and horticultural notes.
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