Mimosa

Mimosa disambiguation (not to be confused with Silver Wattle and Silk Tree, also known as "mimosa")

Members of this genus are among the few plants capable of rapid movement; examples outside of Mimosa include the Telegraph plant, and the Venus Flytrap. The leaves of the plant close quickly when touched. Mimosa can be distinguished from the large related genera, Acacia and Albizia, since its flowers have 10 or fewer stamens. Note that, botanically, what appears to be a single globular flower is actually a cluster of many individual ones.

These trees were a source of hours of amusement in my childhood in Miami, FL.