Yea, it's strange. I live on the NC southeast coast. We have plenty of live oaks and cactus so we figure this must be the result of "bird droppings". It's been growing for several years and I'm afraid it's going to fall out soon.
Just bought this book! Hoping to one day take photographs as beautiful as all of you! Thank you all so much for sharing your work and being such an inspiration! I'm currently floundering with my new D5100 hopefully not for long though!