| crataegus | (n) thorny shrubs and small trees: hawthorn; thorn; thorn apple, Syn. genus Crataegus |
| taegu | (n) a city in southeastern South Korea, Syn. Tegu |
| blackthorn | (n) erect and almost thornless American hawthorn with somewhat pear-shaped berries, Syn. Crataegus calpodendron, pear hawthorn, pear haw, Crataegus tomentosa |
| cockspur thorn | (n) eastern United States hawthorn with long straight thorns, Syn. cockspur hawthorn, Crataegus crus-galli |
| english hawthorn | (n) European hawthorn having deeply cleft leaves and bright red fruits; widely cultivated in many varieties and often grown as impenetrable hedges; established as an escape in eastern North America, Syn. Crataegus monogyna |
| evergreen thorn | (n) evergreen hawthorn of southeastern Europe, Syn. Crataegus oxyacantha |
| mayhaw | (n) hawthorn of southern United States bearing a juicy, acidic, scarlet fruit that is often used in jellies or preserves, Syn. summer haw, Crataegus aestivalis |
| parsley haw | (n) southern United States hawthorn with pinnately lobed leaves, Syn. parsley-leaved thorn, Crataegus marshallii, Crataegus apiifolia |
| red haw | (n) American red-fruited hawthorn with dense corymbs of pink-red flowers, Syn. Crataegus coccinea, Crataegus pedicellata |
| red haw | (n) American red-fruited hawthorn with stems and leaves densely covered with short woolly hairs, Syn. Crataegus coccinea mollis, downy haw, Crataegus mollis |
| scarlet haw | (n) common shrub or small tree of the eastern United States having few thorns and white flowers in corymbs followed by bright orange-red berries, Syn. Crataegus biltmoreana |
| whitethorn | (n) thorny Eurasian shrub of small tree having dense clusters of white to scarlet flowers followed by deep red berries; established as an escape in eastern North America, Syn. Crataegus oxycantha, English hawthorn, may, Crataegus laevigata |
