Peek-a-boo! Ever met a plant that plays shy? That’s the sensitive briar (or Mimosa nuttallii) for you! Just a gentle touch, and its leaves fold up like it’s saying, “Whoa there, personal space!” It’s like the ninja of the plant world, disappearing right before your eyes. So cool! There are many names for this plant. What do you call them? Photo by Stacy Holcomb
