Materia Medica

Verbena hastata (Blue Vervain), realistic botanical photo
Blue Vervain (Verbena hastata) — Swamp Verbena, Wild Hyssop
Blue Vervain Verbena hastata Materia Medica preserving original species-specific folk-herbal research and cautions; adding accurate wetland plant identification, five measured preparations, growing and propagating, ecological value and clarification of European... Read more...