Family Rosaceae Crataegus macracantha Lodd. ex Loudon var. occidentalis (Britton) Eggl.
hawthorn Crataegus: Greek cratos for "strength" because of the hardness of the wood macracantha:macr for "big" and acantha for "spines"
Crataegus columbiana J.T.Howell var. occidentalis (Britton) Dorn
Crataegus divida Sarg.
Crataegus macracantha Lodd. ex Loudon var. divida (Sarg.) Kruschke
Crataegus occidentalis Britton
Crataegus succulenta Schrad. ex Link var. occidentalis Britton
Crataegus X divida Sarg.
