By Dr Ananya Mandal, MD. Dopamine is a neurotransmitter released by the brain that plays a number of roles in humans and other animals. Some of its notable functions are in: 1  movement. 2  memory. 3  pleasurable reward.
Sycamores (Platanus spp.) are tall, spreading shade trees. These North American natives have few problems or pests, but their older bark flakes off in patches. If your sycamore is shedding bark, it may be a healthy, maturing tree.
You have found a sycamore tree. The sycamore is not truly a prairie species. It makes inroads into the Great Plains along the river valleys of the eastern part of the area from Nebraska on south. It is a boundary marker in the ongoing struggle between the tallgrass prairie and eastern deciduous forest biomes.