The flower wax comes from Mimosa, which has good skin-protecting and film-forming properties. It also has a lovely, sweet smell, well known to perfumers.
Mimosa wax is often added to the formula along with sunflower and jojoba wax, as the three of them are under the trade name Acticire and form a natural texturizer that acts as both an emollient that brings softness to the formula as well as an active ingredient with skin repair, protective and moisturizing properties. https://incidecoder.com/ingredients/acacia-decurrens-flower-wax