What is a word that is something prickly and starts with the letter e?

A Word that is something prickly and starts with the letter "e" is "echinacea." This plant, commonly known as coneflower, has spiny, prickly seed heads and is often used in herbal remedies. The term "echinacea" is derived from the Greek Word "echinos," meaning "hedgehog," which reflects its prickly appearance.