The Gaulois tuft "winter mimosa" generally refers to a specific species of mimosa called Acacia dealbata. This plant is often grown for its bright yellow flowers that appear in late winter or early spring, earning it the nickname "winter mimosa" due to its winter blooming.
The winter mimosa is therefore a beautiful shrub that brightens up gardens with its fragrant yellow flowers in the middle of winter, bringing color and cheerfulness to the season. It is appreciated for its ornamental beauty and its pleasant fragrance.