Tonestus

Tonestus, common name serpentweed,^[2] is a genus of North American flowering plants in the family Asteraceae.^[3][2][4]

Tonestus
Tonestus lyallii
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Subfamily:	Asteroideae
Tribe:	Astereae
Subtribe:	Solidagininae
Genus:	Tonestus A.Nelson
Synonyms[1]
Haplopappus sect. Tonestus (A.Nelson) H.M.Hall

The name is an anagram of the name of the related genus Stenotus.^[3] Nestotus is similarly another anagram of the same name.^[5]

Species^[1][6]

• Tonestus lyallii (A.Gray) A.Nelson - Alberta, British Columbia, WA OR ID MT CO WY NV CA
• Tonestus pygmaeus (Torr. & A.Gray) A.Nelson - MT WY CO NM

formerly included^[1]

now in Eurybia Lorandersonia Toiyabea Triniteurybia

• Tonestus aberrans (A.Nelson) G.L.Nesom & D.R.Morgan - Triniteurybia aberrans
• Tonestus alpinus (L.C.Anderson & Goodrich) G.L.Nesom & D.R.Morgan - Toiyabea alpina (L.C.Anderson & Goodrich) R.P.Roberts, Urbatsch & Neubig
• Tonestus eximius (H.M.Hall) A.Nelson & J.F.Macbr. - Toiyabea eximia (H.M. Hall) Nesom
• Tonestus graniticus (Tiehm & L.M.Shultz) G.L.Nesom & D.R.Morgan - Toiyabea granitica (Tiehm & Schultz) Nesom
• Tonestus kingii (D.C.Eaton) G.L.Nesom - Eurybia kingii (D.C.Eaton) G.L.Nesom
• Tonestus microcephalus (Cronquist) G.L.Nesom & D.R.Morgan - Lorandersonia microcephala (Cronquist) Urbatsch, R.P.Roberts & Neubig
• Tonestus peirsonii (D.D.Keck) G.L.Nesom & D.R.Morgan - Toiyabea peirsonii (D.D. Keck) Nesom