From the Super Mario Wiki
Flower Finder is a badge in Paper Mario and Paper Mario: The Thousand-Year Door. In Paper Mario, it can be bought from Merlow for twelve Star Pieces. In Paper Mario: The Thousand-Year Door, it can be bought from Dazzle for six Star Pieces, and can be rarely dropped by X-Naut PhDs after winning a battle against them. If Mario equips this badge, more flowers (items that restore Mario's FP by one) appear after a successful battle. This badge works alongside other badges that affect dropped items after battle, such as Heart Finder and Item Hog.
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