| Crataegus
coccinea
L. = C. pedicellata Sarg. scarlet hawthorn Native |
   
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| Crataegus
crus-galli
L. cockspur hawthorn Introduced |
           
|
| Crataegus
x fretalis
Sarg. = C. ampla Sarg. Long Island Sound hawthorn Native |
      
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| Crataegus
macracantha
Lodd. ex Loud = C. succulenta var. macracantha (Lodd. ex Loud) Egglest. long-thorned hawthorn Native |
  
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| Crataegus
macrosperma
Ashe = C. roanense Ashe large-seeded hawthorn Native |
                
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| Crataegus
monogyna
Jacq. English hawthorn Introduced |
         
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| Crataegus
phaenopyrum
(L. f.) Medicus = C. cordata Ait. = C. populifolia Walt. Washington hawthorn Introduced |
    
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| Crataegus
pruinosa
(Wendl. f.) K. Koch frosted hawthorn Native |
   
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| Crataegus
sp.
hawthorn Native |
          
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| Crataegus
submollis
Sarg. = C. submollis Sarg. = C. pennsylvanica Ashe = C. champlainensis Sarg. = C. mollis Scheele downy hawthorn Native |
        
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| Crataegus
succulenta
Sarg. = C. succulenta var. laxiflora (Sarg.) Kruschke succulent hawthorn Native |
       
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