Kingdom Plantae Family Asteraceae Supertribe Helianthodae Higher classification Asteroideae | Order Asterales Subfamily Asteroideae Scientific name Coreopsideae Rank Tribe | |
 | ||
Lower classifications Tickseed, Dahlia, Bidens, Cosmos, Thelesperma | ||
Coreopsideae is a tribe of flowering plants belonging to the Asteroideae subfamily.
Contents
Classification
This tribe includes genera like Cosmos and Dahlia.
A similar group has been recognized since 1829, generally as part of the tribe Heliantheae (Cassini, 1819). In the late 20th century, molecular studies caused a slightly redefined version of this group to be recognized as its own tribe, Coreopsideae. The larger version of Heliantheae was split into tribes including Bahieae, Chaenactideae, Coreopsideae, Helenieae and, finally, Heliantheae (sensu stricto).
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.
Genera
References
Coreopsideae Wikipedia(Text) CC BY-SA