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Description
An Orange Tip, Anthocharis cardamines, is sitting on the flowers of a Coral-root Bittercress, Cardamine bulbifera, a potential foodplant for its larvae. Full size view, please

Some additional information: only male butterflies of the species Anthocharis cardamines feature those gorgeous orange tips to their forewings, which is the reason for its English name, and also its German name, "Aurorafalter". Their larvae feed on several species of wild crucifers; the Coral-root Bittercress is one them. It is a lovely European wildplant growing in moist beech forests, and it is notable that it does not only propagate by seeds but also by its characteristic axilliary bulbils (you can see them at the stem, bottom right), which fall to the ground when the plant goes dormant in summer and then grow to those amazing coral-shaped rootstocks.

Description
An Orange Tip, Anthocharis cardamines, is sitting on the flowers of a Coral-root Bittercress, Cardamine bulbifera, a potential foodplant for its larvae. Full size view, please

Some additional information: only male butterflies of the species Anthocharis cardamines feature those gorgeous orange tips to their forewings, which is the reason for its English name, and also its German name, "Aurorafalter". Their larvae feed on several species of wild crucifers; the Coral-root Bittercress is one them. It is a lovely European wildplant growing in moist beech forests, and it is notable that it does not only propagate by seeds but also by its characteristic axilliary bulbils (you can see them at the stem, bottom right), which fall to the ground when the plant goes dormant in summer and then grow to those amazing coral-shaped rootstocks.