Tonestus Explained

Tonestus, common name serpentweed, is a genus of North American flowering plants in the family Asteraceae.^{[1] [2] [3]}

The name is an anagram of the name of the related genus Stenotus.^[1] Nestotus is similarly another anagram of the same name.^[4]

Species^[5]

• 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 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

Notes and References

1. https://www.biodiversitylibrary.org/page/10350143#page/358/mode/1up Nelson, Aven. 1904. Botanical Gazette 37(4): 262
2. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=133121 Flora of North America
3. http://www.tropicos.org/Name/40015314 Tropicos, Tonestus A. Nelson
4. https://www.biodiversitylibrary.org/page/9311892#page/1679/mode/1up Roberts, Roland P., Urbatsch, Lowell Edward, & Neubig, Kurt Maximilian. 2005. Sida 21(3): 1647-1655
5. http://bonap.net/NAPA/TaxonMaps/Genus/County/Tonestus Biota of North America Program 2013 range distribution maps