These rattlesnakes can get up 6 feet in length, but most stay around 4-5 feet. The Timber or Canebreak Rattlesnake has black or brown cross bands on a base color of yellow or brown. It also has a very large head because of its big venom sacs. The Timber Rattlesnake may also have an orange-brown stripe that runs along the spine. The Timber Rattlesnake needs very little background to become virtually invisible, just throw in a few leaves and sticks and you would never see it. This snake tends to be very common around farms, nature preserves, and wooded parks. Timber Rattlesnake venom is very potent and it also is delivered in large quantities, thanks to those big venom sacs. Its venom is mostly neurotoxic and with a bit of myotoxin thrown in there: together they can cause muscle necrosis (rotting of the muscle and flesh), non-stop bleeding, nerve damage, dizziness, tingling sensations, loss of muscle control, asphyxiation, and, eventually, death.
Credit: John Jensen, Georgia Department of Natural Resources.
This image is from University of Florida IFAS webpage.