What is the difference between wicker and rattan furniture?

What is the difference between wicker and rattan furniture?

The terms "rattan" or "wicker" often are mistakenly used interchangeably to describe the popular indoor/outdoor furniture that graces patios and summer homes, but rattan is a material used to make the furniture, while wicker is the technique that involves weaving natural materials such as bamboo and ...

Here are some links on the subject, too:

http://www.homedit.com/what-is-the-difference-between-wicker-and-rattan-furniture/

http://www.thewoodworksinc.com/articles/what-is-wicker-versus-rattan.php

http://www.designfurnishings.com/blog/difference-rattan-cane-wicker-furniture/