Coreopsideae

Coreopsideae is a tribe of flowering plants belonging to the Asteroideae subfamily.^[1] It includes widely cultivated genera such as Coreopsis, after which the tribe is named, as well as Cosmos and Dahlia.

Coreopsideae
Cosmos bipinnatus field
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Subfamily:	Asteroideae
Tribe:	Coreopsideae (Less.) Lindl.
Genera
See text

A similar group has been recognized since 1829, generally as part of the tribe Heliantheae (Cassini, 1819).^[2] In the late 20th century, molecular studies caused a slightly redefined version of this group to be recognized as its own tribe, Coreopsideae.^[2] The larger version of Heliantheae was split into tribes including Bahieae, Chaenactideae, Coreopsideae, Helenieae and, finally, Heliantheae (sensu stricto).^[3] Within the tribe, the traditional definition of genera based on flower and fruit characters does not reflect evolutionary relationships as inferred through molecular phylogenetics.^[4]

The tribe is characterized by shiny green bracts at the base of the flower head in two rows: an inner row of tightly spaced bracts and an outer row of a smaller number pointing downward.^[5] It includes five genera that use C₄ carbon fixation: Chrysanthellum, Eryngiophyllum, Glossocardia (including Guerreroia), Isostigma, and Neuractis. These genera are thought to share a common ancestor and thus a single origin of C₄ carbon fixation.^[6]

Genera

The 27 Coreopsideae genera recognized by the Global Compositae Database as of March 2025:^[7]

• Bidens L.
• Chrysanthellum Rich.
• Coreocarpus Benth.
• Coreopsis L.
• Cosmos Cav.
• Cyathomone S.F.Blake
• Dahlia Cav.
• Dicranocarpus A.Gray
• Diodontium F.Muell.
• Ericentrodea S.F.Blake
• Fitchia Hook.f.
• Glossocardia Cass.
• Goldmanella Greenm.
• Henricksonia B.L.Turner
• Heterosperma Cav.
• Hidalgoa La Llave
• Isostigma Less.
• Koehneola Urb.
• Moonia Arn.
• Narvalina Cass.
• Oparanthus Sherff
• Petrobium R.Br.
• Pinillosia Ossa ex DC.
• Selleophytum Urb.
• Tetraperone Urb.
• Thelesperma Less.
• Trioncinia (F.Muell.) Veldkamp

Plants of the World Online accepts the genera Anacis Schrank,^[8]Electranthera Mesfin, D.J.Crawford & Pruski,^[9][10] Epilepis Benth.,^[11] Leptosyne DC.,^[12] and Silphidium (Torr. & A.Gray) Mesfin & D.J.Crawford,^[13] and treats Selleophytum as a synonym of Coreopsis.^[14]