Amber from the ancient neotropical rainforests of the Dominican Republic and Mexico often contains an abundance of plant-derived inclusions such as the leaves, stems, seeds, and flowers that belonged to the flora that inhabited those regions millions of years ago. The small, delicate flower in amber from the Dominican Republic, dating to about 20-25 MYr ago, belonged to a close relative to the modern-day mimosa tree. Many filamentous stamens (male reproductive structures), structural details well-preserved, project from the base of the flower, which also displays fine surface detail. Angiosperm trees like mimosas and the amber resin-bearing Hymenaea were likely to be close neighbors in the amber forests of the New World. [Approx. mag. x 10]