Ephedra (plant)

Ephedra
Temporal range:
E. viridis Coville
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Gymnospermae
Division: Gnetophyta
Class: Gnetopsida
Order: Ephedrales
Family: Ephedraceae
Genus:
L.[1][2]
Type species
E. distachya[1]
L.
Range of genus Ephedra
Synonyms[3]
1 synonym

Ephedra is a genus of gymnosperm shrubs. As of July 2025, 74 species, and two hybrids, are accepted.[3] The species of Ephedra are widespread in many arid regions of the world, ranging across southwestern North America, southern Europe, northern Africa, southwest and central Asia, northern China, and western South America.[3] It is the only extant genus in its family, Ephedraceae, and order, Ephedrales, and one of the three extant genera of the division Gnetophyta together with Gnetum and Welwitschia.

In temperate climates, most Ephedra species grow on shores or in sandy soils with direct sun exposure. Common names in English include joint-pine, jointfir, Mormon-tea, or Brigham tea. The Chinese name for Ephedra species is mahuang (simplified Chinese: 麻黄; traditional Chinese: 麻黃; pinyin: máhuáng; Wade–Giles: ma-huang; lit. 'hemp yellow'). Ephedra is the origin of the name of the stimulant ephedrine, which the plants contain in significant concentration.

  1. ^ a b "Ephedra". International Plant Names Index (IPNI). Royal Botanic Gardens, Kew; Harvard University Herbaria & Libraries; Australian National Botanic Gardens. Retrieved 26 July 2025.
  2. ^ Linnæi, Caroli (1753). Species Plantarum [The Species of Plants] (in Latin). Vol. II (1 ed.). Stockholm: Laurentius Salvius. p. 1040. OCLC 186272535. Retrieved 26 July 2025.
  3. ^ a b c "Ephedra Tourn. ex L.". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 26 July 2025.