Jointfir (Ephedra) -

• Nevada Jointfir (Nevadensis)
  
• Intermixta (Intermixta)
  
• Gerard Jointfir (Gerardiana)
  
• Death Valley Jointfir (Funerea)
  
• Vine Jointfir (Pedunculata)
  
• Chinese Ephedra (Sinica)
  
• Mormon Tea (Viridis)
  
• Longleaf Jointfir (Trifurca)
  
• Torrey's Jointfir (Torreyana)
  Torrey's Jointfir, Torrey's Jointfir
• Fragilis (Fragilis)
  
• Arizona Jointfir (Fasciculata)
  
• Rough Jointfir (Aspera)
  
• Arenicola (Arenicola)
  
• Clapweed (Antisyphilitica)
  
• California Jointfir (Californica)
  
• Cory's Jointfir (Coryi)
  
• Ma Huang (Equisetina)
  
• Jointfir (Distachya)
  
• Cutler's Jointfir (Cutleri)
  
• High-climbing Jointfir (Altissima)