Ironweed (Vernonia fasciculata): traditional uses, phytochemicals, preparation methods, synergies and safety precautions for this North American plant.

Roselle (Hibiscus sabdariffa): traditional uses, how to make hibiscus tea, its mild effect on blood pressure and cautions in pregnancy and with medicines.

Marsh Cudweed (Gnaphalium uliginosum): plant used in traditional infusions for mild hypertension and sore throat, with contraindications in pregnancy.

Guelder rose (Viburnum opulus): traditional uses, decoction and tincture preparation, pregnancy contraindications, and drug interactions before use.

Rooibos (Aspalathus linearis): caffeine-free South African tea, Khoisan tradition, studied properties, and contraindications in pregnancy and breastfeeding.