English hawthorn, more...
[Crataegus curvisepala auct. non Lindm., more]
Etymology: Crataegus: Greek cratos for "strength" because of the hardness of the wood
Plants: perennial tree
Conservation Status: Introduced - rarely escaped
USDA Plants Database: Federal Distribution and detailed information including photos University of Wisconsin - Green Bay: Trees: Photos, descriptions, information USDA Agricultural Research Service (ARS): Images of seeds, fruits, embryos, etc. Southwest School of Botanical Medicine: Britton & Brown Illustrated Flora - 2nd Edition (1913) "An Illustrated Flora of the Northern United States and Canada"