My Carolina Buckthorns have already stopped blooming and are forming the green berries. Spicebush (Lindera benzoin) foliage has a distinct fragrance...a bit spicy fragrance, hence the common name. If you tear a leaf, you'll smell it. The foliage has even been used as a spice at times. It's a host plant for a butterfly, the Spicebush Swallowtail. They bloom in spring.
One of my Carolina Buckthorn blooming:
My Spicebush:
