Diagnose Me - Ephedra - History, side effects, and why is it recommended. MSKCC - Ephedra - Includes information on uses, constituents, and mechanism of action. University of Maryland Medical Center - Provides an overview of the plant alongside its medicinal uses and indications. Includes precautions and supporting research. Mayo Clinic: Ephedra - Presents an overview covering evidence and dosing involved with this herb. NRCS - Ephedra - Presents an interactive map indicating where the herb grows in the US. Images included. AHRQ - Ephedra and Ephedrine - Ephedra's finding towards weight loss and athletic performance. Cambride University - Botanic Garden - Article covering ephedra's species, medicinal uses, and habitat. USU Extension - Green Ephedra - Fact sheet including ecological adaptations, uses, and management. Plants for a Future - Ephedra gerardiana - Presents edible uses of this herb together with the physical characteristics. Pictures of the herb are also available. Colorado Rocky Mountain Wildflowers - Article based on ephedra family, specially on viridis, cutleri and torreyana species. Maps and photographs included. NCCIH - Ephedra - Covers the side effects and caution towards this herb. References available. Wikipedia: Ephedra - Extended list of species and medical uses. Calphotos: Ephedra - Photographs. Whole Health Chicago - Article based on the herb's side effect, interaction and cautions.