Hedera helix Leaf Source & Identity
The botanical entity is Hedera helix L., common or English ivy, an evergreen climber of the Araliaceae that clings to walls and tree trunks by aerial roots. The part used is the leaf. Stems, the black berries and the roots are not part of this ingredient. Young ivy bears lobed leaves and mature flowering shoots bear unlobed ones, and both are leaf material of the same species.
Ivy names invite confusion. Boston ivy belongs to the grape family and poison ivy to the cashew family, so neither is related to Hedera. Irish ivy, Hedera hibernica, is a close relative that is often grouped with it in trade. The leaf carries triterpene saponins such as hederacoside C and alpha-hederin, flavonoids and chlorogenic-type acids, named only as constituent families.












