parsley-leaved thorn(n = noun.plant) crataegus apiifolia, crataegus marshallii, parsley haw - southern United States hawthorn with pinnately lobed leaves;
is a kind of haw, hawthorn
is a member of crataegus, genus crataegus

christ thorn, cockspur thorn, common thorn apple, evergreen thorn, fire thorn, glastonbury thorn, hedge thorn, jerusalem thorn, mysore thorn, thorn, thorn apple