Tetrachyron

Tetrachyron is a genus of Mesoamerican plants in the tribe Heliantheae within the family Asteraceae.^[1][3][4]

Species^[2][5][6][7]

• Tetrachyron brandegeei (Greenm.) Wussow & Urbatsch - Oaxaca, Puebla
• Tetrachyron discolor (A.Gray) Wussow & Urbatsch - Hidalgo
• Tetrachyron grayi (Klatt) Wussow & Urbatsch - Tamaulipas, Nuevo León
• Tetrachyron manicatum Schltdl. - Oaxaca, Veracruz
• Tetrachyron orizabaensis (Klatt) Wussow & Urbatsch - Guatemala, Chiapas, Oaxaca, Puebla, Veracruz
• Tetrachyron torresii B.L.Turner - Oaxaca
• Tetrachyron websteri (Wussow & Urbatsch) B.L.Turner - Tamaulipas, Hidalgo, Querétaro

formerly included^[2]

Tetrachyron
Tetrachyron websteri in Mexico
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Subfamily:	Asteroideae
Tribe:	Heliantheae
Subtribe:	Verbesininae
Genus:	Tetrachyron Schltdl.
Type species
Tetrachyron manicatum[1] Schltdl.
Synonyms[2]
Tephrocalea A.Gray Calea sect. Tetrachyron (Schltdl.) Benth. & Hook.f. Calea subg. Tephrocalea (A.Gray) B.L.Rob. & Greenm.

see Calea

• Tetrachyron oaxacana - Calea oaxacana