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Crataegus douglasii Lindl. var. douglasii
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Rosaceae
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NW MW North America (Canada: British Columbia to Ontario; USA: Alaska, Washington to Michigan, California to South Dakota, Texas)
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NW MW
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M?
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D
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hel xer
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fr
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Crataegus columbiana Howell
Crataegus howellii Heiser
Oxyacantha howellii Lundell
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typical black hawthorn; Columbia hawthorn (Canada, USA); Columbian hawthorn
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aubépine noire typique; aubépine à longues épines, aubépine de Columbia (Canada); aubépine occidentale
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