Trichostemma

Wedelia
Wedelia hispida
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Asterids
Order:	Asterales
Family:	Asteraceae
Subfamily:	Asteroideae
Tribe:	Heliantheae
Subtribe:	Ecliptinae
Genus:	Wedelia Jacq. 1760, conserved name, not Loefl. 1758 (Nyctaginaceae)
Type species
Wedelia fructicosa Jacq.
Synonyms
Anomostephium DC. Trichostephus Cass. Aspilia Thouars Anthemiopsis Bojer ex DC. Seruneum Rumph. ex Kuntze Dipterotheca Sch.Bip. ex Hochst. Dipterotheca Sch.Bip. Wedelia sect. Cyathophora DC. Thelechitonia Cuatrec. Niebuhria Neck. ex Britton Trichostemma Cass. Niebuhria Neck. ex Britten Wirtgenia Sch.Bip. Trichostephium Cass. Stemmodontia Cass. Coronocarpus Schumach. & Thonn. Menotriche Steetz Niebuhria Neck. Gymnolomia Kunth Harpephora Endl.

Wedelia is a flowering plant genus in the sunflower family. They are one of the genera commonly called "creeping-oxeyes".

The genus is named in honor of German botanist and physician Georg Wolfgang Wedel, 1645–1721.

There are difficulties regarding the classification of this genus for its affinities are uncertain. Further studies are needed to clarify its taxonomic and phylogenetic relationships.

Many species were once considered part of Wedelia but have been now transferred to other genera, including Angelphytum, Aspilia, Baltimora, Blainvillea, Chrysogonum, Eclipta, Elaphandra, Eleutheranthera, Guizotia, Heliopsis, Kingianthus, Lasianthaea, Melampodium, Melanthera, Moonia, Sphagneticola, Synedrella, Tuberculocarpus, Verbesina, Viguiera, Villanova, Wollastonia and Zexmenia.

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Wikipedia