Crataegus calpodendron var. hispidula (Sargent) E.J. Palmer Dataset Database of Vascular Plants of Canada (VASCAN) Rank VARIETY Classification class Equisetopsida order Rosales family Rosaceae genus Crataegus species Crataegus calpodendron Name Homonyms Crataegus calpodendron var. hispidula (Sargent) E.J. Palmer