Beans belong to the pod-producing plant family called legumes. There are more than 18,000 different species of beans, and the sea heart--Entada gigas--is the longest. Sea hearts grow in tropical rainforests and can reach a length of 3 to 6 feet.
About this Author
Sharon O'Neil has been writing professionally since 2008. Her work has been published on various websites, including Walden University's Think+Up. She has worked in international business and is a licensed customs broker. As an in-home caregiver for her mother who has Alzheimer's disease, O'Neil stays current on elder-care issues. She obtained a Bachelor of Science in business from Indiana University.