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Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Asterids
Cladus: Campanulids
Ordo: Asterales

Familia: Asteraceae
Subfamilia: Asteroideae
Tribus: Bahieae
Genus: Hymenothrix
Species: H. autumnalis – H. biternata – H. dissecta – H. glandulopubescens – H. greenmanii – H. janakosiana – H. loomisii – H. palmeri – H. pedata – H. wislizeni – H. wrighti
Name

Hymenothrix A.Gray, Mem. Amer. Acad. Arts ser. 2, 4(1): 102. (1849)

Type species: Hymenothrix wislizeni A.Gray, Mem. Amer. Acad. Arts ser. 2, 4(1): 102. (1849)

Synonyms

Heterotypic
Amauriopsis Rydb. N. Amer. Fl. 34(1): 37. (1914)
Type species: Amauriopsis dissecta (A.Gray) Rydb. (1914)

References

Gray, A. 1849. Memoirs of the American Academy of Arts and Sciences ser. 2, 4(1): 102.
Baldwin, B.G. & Wood, K.R. 2016. Origin of the Rapa endemic genus Apostates: Revisiting major disjunctions and evolutionary conservatism in the Bahia alliance (Compositae: Bahieae). Taxon 65(5): 1064–1080. DOI: 10.12705/655.8 PDF Reference page.
Hassler, M. 2017. Hymenothrix. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2017. Species 2000 & ITIS Catalogue of Life. Published on the internet. Accessed: 2017 Dec. 21. Reference page.
International Plant Names Index. Dec. 21. Hymenothrix. Published online. Accessed: 3 QDQ Dec. 21.

Hymenothrix is a small genus of North American flowering plants in the daisy family known as thimbleheads. They are native to the southwestern United States and northern Mexico.[2]

These are spindly, erect annual, biennial, and perennial herbs with white or yellow flowers.[3]

Species[1][4][5]

Hymenothrix glandulosa - Chihuahua
Hymenothrix greenmanii - México State
Hymenothrix loomisii - Loomis's thimblehead - California Nevada Arizona
Hymenothrix palmeri - Chihuahua
Hymenothrix wislizeni - Trans-Pecos thimblehead - Chihuahua, Sonora, Arizona New Mexico Texas
Hymenothrix wrightii - Wright's thimblehead - Chihuahua, Baja California, California Arizona New Mexico Texas

formerly included

Hymenothrix purpurea Brandegee - Florestina purpurea (Brandegee) Rydb.
References

Flann, C (ed) 2009+ Global Compositae Checklist
Gray, Asa. 1849. Memoirs of the American Academy of Arts and Science, new series 4(1): 102 generic description in Latin, specific description and commentary in English
Flora of North America Hymenothrix A. Gray
The Plant List search for Hymenothrix
Biota of North America Program 2013 county distribution maps

Plants Images

Biology Encyclopedia

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