| Crataegus ardua |
Sarg. |
Ontario Nat. Sci. Bull. 4: 93 (1908) |
| Crataegus halliana |
Sarg. |
Bull. New York State Mus. Nat. Hist. 105: 73 (1906) |
| Crataegus macracantha var. succulenta |
(Schrad. ex Link) Rehder |
Cycl. Amer. Hort. 1: 396 (1900) |
| Crataegus sonnenbergensis |
Sarg. |
Bull. New York State Mus. Nat. Hist. 167: 120 (1913) |
| Mespilus succulenta |
Sweet |
Hortus britannicus ; 1826 76 1826 |
| Crataegus coccinea var. macracantha |
Sarg. |
The silva of North America ; 1890 96, t.181 1892 |
| Crataegus rotundifolia var. succulenta |
Dippel |
Handbuch der Laubholzkunde ; 1889 441 1893 |
| Crataegus ambrosia |
Sarg. |
Bull. New York State Mus. Nat. Hist. 105: 69 (1906) |
| Crataegus chrysocarpa var. bicknellii |
(Eggl.) E.J.Palmer |
Brittonia 5: 484 (1946) |
| Crataegus ferta |
Sarg. |
Ontario Nat. Sci. Bull. 4: 77 (1908) |
| Crataegus florifera var. celsa |
(Sarg.) Kruschke |
Publ. Bot. Milwaukee Public Mus. 3: 172 (1965) |
| Crataegus florifera var. mortonis |
(Laughlin) Kruschke |
Publ. Bot. Milwaukee Public Mus. 3: 172 (1965) |
| Crataegus florifera var. shirleyensis |
(Sarg.) Kruschke |
Publ. Bot. Milwaukee Public Mus. 3: 172 (1965) |
| Crataegus florifera var. virilis |
(Sarg.) Kruschke |
Publ. Bot. Milwaukee Public Mus. 3: 171 (1965) |
| Crataegus gemmosa |
Sarg. |
Bot. Gaz. 33: 119 (1902) |
| Crataegus leucantha |
Laughlin |
Nat. Hist. Misc. 110: 1 (1952) |
| Crataegus macracantha var. colorado |
(Ashe) Kruschke |
Publ. Bot. Milwaukee Public Mus. 3: 161 (1965) |
| Crataegus macracantha var. divida |
(Sarg.) Kruschke |
Publ. Bot. Milwaukee Public Mus. 3: 161 (1965) |
| Crataegus macracantha var. integriloba |
(Sarg.) Kruschke |
Publ. Bot. Milwaukee Public Mus. 3: 161 (1965) |
| Crataegus macracantha var. pertomentosa |
(Ashe) Kruschke |
Publ. Bot. Milwaukee Public Mus. 3: 161 (1965) |
| Crataegus mortonis |
Laughlin |
Phytologia 5: 122 (1955) |
| Crataegus neofluvialis |
Ashe |
J. Elisha Mitchell Sci. Soc. 16(2): 71 (1900) |
| Crataegus pertomentosa |
Ashe |
J. Elisha Mitchell Sci. Soc. 16(2): 70 (1900) |
| Crataegus saeva |
Sarg. |
Ontario Nat. Sci. Bull. 4: 94 (1908) |
| Crataegus succulenta var. gemmosa |
(Sarg.) Kruschke |
Publ. Bot. Milwaukee Public Mus. 3: 159 (1965) |
| Crataegus succulenta var. laxiflora |
(Sarg.) Kruschke |
Publ. Bot. Milwaukee Public Mus. 3: 160 (1965) |
| Crataegus succulenta var. michiganensis |
(Ashe) E.J.Palmer |
Brittonia 5: 489 (1946) |
| Crataegus succulenta var. occidentalis |
(Britton) E.J.Palmer in Fernald |
Manual , ed. 8: 799 (1950) |
| Crataegus succulenta var. pertomentosa |
(Ashe) E.J.Palmer |
Rhodora 40: 133 (1938) |
| Crataegus succulenta var. pisifera |
(Sarg.) Kruschke |
Publ. Bot. Milwaukee Public Mus. 3: 159 (1965) |
| Crataegus succulenta var. rutila |
(Sarg.) Kruschke |
Publ. Bot. Milwaukee Public Mus. 3: 160 (1965) |
| Crataegus venulosa |
Sarg. |
Ontario Nat. Sci. Bull. 4: 96 (1908) |
| Crataegus virilis |
Sarg. |
Ontario Nat. Sci. Bull. 4: 68 (1908) |
| Crataegus laxiflora |
Sarg. |
Bot. Gaz. 35: 400 (1903) |
| Oxyacantha succulenta |
(Schrad. ex Link) Lunell |
Amer. Midl. Naturalist 5: 238 (1918) |
| Mespilus succulenta |
(Schrad. ex Link) Wenz. |
Linnaea 38: 136 (1874) |
| Crataegus glandulosa var. succulenta |
(Schrad. ex Link) K.Koch |
Hort. Dendrol. : 167 (1853) |
| Crataegus glandulosa unranked succulenta |
(Schrad. ex Link) Lauche |
Deut. Dendrol. : 573 (1883) |
