The phrase "mucilaginous herb" refers to a type of plant that has a slimy or gooey substance called mucilage. This substance is often found in certain herbs and gives them a slippery texture. Full definition
Along with bone broth, gelatin and fermented foods, mucilaginous herbs such as marshmallow root are sometimes consumed as a tea or cold infusion to improve gut lining integrity. (mommypotamus.com)
GI Select ™ also contains a superior blend of three soothing mucilaginous herbs: ALOE, MARSHMALLOW and SLIPPERY ELM. (mossnutrition.com)
Some herbs like slippery elm and marshmallow root (mucilaginous herbs) have been found to coat the stomach. (nutritionfacts.org)