Crataegus, genus Crataegus - thorny shrubs and small trees: hawthorn; thorn; thorn apple

Crataegus apiifolia, Crataegus marshallii, parsley haw, parsley-leaved thorn - southern United States hawthorn with pinnately lobed leaves

Crataegus biltmoreana, scarlet haw - common shrub or small tree of the eastern United States having few thorns and white flowers in corymbs followed by bright orange-red berries

Crataegus calpodendron, Crataegus tomentosa, pear haw, pear hawthorn, blackthorn - erect and almost thornless American hawthorn with somewhat pear-shaped berries

cockspur hawthorn, cockspur thorn, Crataegus crus-galli - eastern United States hawthorn with long straight thorns

Crataegus aestivalis, mayhaw, summer haw - hawthorn of southern United States bearing juicy acid scarlet fruit often used in jellies or preserves

Crataegus laevigata, Crataegus oxycantha, whitethorn, English hawthorn, may - 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

Crataegus monogyna, English hawthorn - 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

Crataegus coccinea mollis, Crataegus mollis, downy haw, red haw - American red-fruited hawthorn with stems and leaves densely covered with short woolly hairs

Crataegus oxyacantha, evergreen thorn - evergreen hawthorn of southeastern Europe

Crataegus coccinea, Crataegus pedicellata, red haw - American red-fruited hawthorn with dense corymbs of pink-red flowers

bush, shrub - a low woody perennial plant usually having several major branches

nictitating membrane, third eyelid - a protective fold of skin in the eyes of reptiles and birds and some mammals

let loose, let out, utter, emit - express audibly; utter sounds (not necessarily words); "She let out a big heavy sigh"; "He uttered strange sounds that nobody could understand"