Identifying a Spring-Blooming Bush with Three Leaf Types in Arkansas

A gardener in north central Arkansas (zone 6) wants to identify a backyard bush that blooms in spring with tiny white flowers loved by bees and has three distinct leaf shapes. The expert suggests it could be a spirea or a weed like a sticker bush, but stresses that a photo is needed for certainty. He requests a digital photo emailed with "PLANT ID" in the subject line.