Elecampane (Inula helenium): root used in teas and decoctions for cough, digestion, and immune support, with preparation and cautions explained.

Catnip (Nepeta cataria): calming herb brewed as tea for anxiety, sleep, and digestion, with preparation methods and contraindications explained.

Field elm (Ulmus minor): traditional uses, tea and poultice preparation, phytochemical profile, and contraindications for internal and topical use.

Slippery Elm (Ulmus rubra): traditional uses, tea preparation, demulcent properties, and contraindications of this North American medicinal bark.

Celery (Apium graveolens): diuretic and anti-inflammatory plant, with traditional uses, preparation, synergies, and contraindications explained.