Serpentweed (Tonestus) -

• Smallhead Heathgoldenrod (Microcephalus)
  
• Peirson's Serpentweed (Peirsonii)
  
• Pygmy Goldenweed (Pygmaeus)
  
• Lyall's Goldenweed (Lyallii)
  
• King's Serpentweed (Kingii)
  Barneby's Serpentweed, King's Serpentweed
• Alpine Serpentweed (Alpinus)
  
• Lake Tahoe Serpentweed (Eximius)
  
• Granite Serpentweed (Graniticus)
  
• Idaho Goldenweed (Aberrans)