# Tonestus

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***Tonestus***, common name **serpentweed,**[1] is a genus of North American [flowering plants](/source/Flowering_plant) in the family [Asteraceae](/source/Asteraceae).[2][1][3]

The name is an [anagram](/source/Anagram) of the name of the related genus *[Stenotus](/source/Stenotus_(plant)).*[2] *[Nestotus](/source/Nestotus)* is similarly another [anagram](/source/Anagram) of the same name.[4]

**Species[5][6]**

- *[Tonestus lyallii](/source/Tonestus_lyallii)* (A.Gray) A.Nelson - [Alberta](/source/Alberta), [British Columbia](/source/British_Columbia), [WA](/source/Washington_(state)) [OR](/source/Oregon) [ID](/source/Idaho) [MT](/source/Montana) [CO](/source/Colorado) [WY](/source/Wyoming) [NV](/source/Nevada) [CA](/source/California)
- *[Tonestus pygmaeus](/source/Pygmy_serpentweed)* (Torr. & A.Gray) A.Nelson - [MT](/source/Montana) [WY](/source/Wyoming) [CO](/source/Colorado) [NM](/source/New_Mexico)

**formerly included[5]**

now in *[Eurybia](/source/Eurybia_(plant)) [Lorandersonia](/source/Lorandersonia) [Toiyabea](/source/Toiyabea) [Triniteurybia](/source/Triniteurybia)*

- *Tonestus aberrans* (A.Nelson) G.L.Nesom & D.R.Morgan - *[Triniteurybia aberrans](/source/Triniteurybia_aberrans)*
- *Tonestus alpinus* (L.C.Anderson & Goodrich) G.L.Nesom & D.R.Morgan - *[Toiyabea alpina](/source/Toiyabea_alpina)* (L.C.Anderson & Goodrich) R.P.Roberts, Urbatsch & Neubig
- *Tonestus eximius* (H.M.Hall) A.Nelson & J.F.Macbr. - *[Toiyabea eximia](/source/Toiyabea_eximia)* (H.M. Hall) Nesom
- *Tonestus graniticus* (Tiehm & L.M.Shultz) G.L.Nesom & D.R.Morgan - *[Toiyabea granitica](/source/Toiyabea_granitica)* (Tiehm & Schultz) Nesom
- *Tonestus kingii* (D.C.Eaton) G.L.Nesom - *[Eurybia kingii](/source/Eurybia_kingii)* (D.C.Eaton) G.L.Nesom
- *Tonestus microcephalus* (Cronquist) G.L.Nesom & D.R.Morgan - *[Lorandersonia microcephala](/source/Lorandersonia_microcephala)* (Cronquist) Urbatsch, R.P.Roberts & Neubig
- *Tonestus peirsonii* (D.D.Keck) G.L.Nesom & D.R.Morgan - *[Toiyabea peirsonii](/source/Toiyabea_peirsonii)* (D.D. Keck) Nesom

## References

1. [Flora of North America](http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=133121)

1. [Nelson, Aven. 1904. Botanical Gazette 37(4): 262](https://www.biodiversitylibrary.org/page/10350143#page/358/mode/1up) in English

1. [Tropicos, *Tonestus* A. Nelson](http://www.tropicos.org/Name/40015314)

1. [Roberts, Roland P., Urbatsch, Lowell Edward, & Neubig, Kurt Maximilian. 2005. Sida 21(3): 1647-1655](https://www.biodiversitylibrary.org/page/9311892#page/1679/mode/1up)

1. "*Tonestus* A.Nelson". 1075907. Retrieved 23 March 2024.

1. [Biota of North America Program 2013 range distribution maps](http://bonap.net/NAPA/TaxonMaps/Genus/County/Tonestus)

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Adapted from the Wikipedia article [Tonestus](https://en.wikipedia.org/wiki/Tonestus) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Tonestus?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.