Ma huang
- kingdom: Plantae
- phylum: Tracheophyta
- class: Gnetopsida
- order: Ephedrales
- family: Ephedraceae
- genus: Ephedra
- species: Ephedra equisetina
Bergshamra- Djursholm
Stockholm
Sweden
Denver
Colorado
United States
Ma huang Bergshamra Djursholm Denver