Virginia buttonweed

Diodia virginiana

''Diodia virginiana'' is a plant species in the Rubiaceae, common name Virginia buttonweed. It is a spreading, matted perennial with opposite leaves, often mottled because of a virus that attacks the foliage.
Virginia Buttonweed (Diodia virginiana) Growing in an overgrown backyard habitat/field in NW Georgia (Gordon County), US. https://www.jungledragon.com/image/62393/virginia_buttonweed_diodia_virginiana.html https://www.jungledragon.com/image/62394/virginia_buttonweed_diodia_virginiana.html Diodia virginiana,Geotagged,Spring,United States,Virginia buttonweed

Appearance

Flowers are white, cross-shaped with 4 petals. Fruits are green, often floating on water. The species can become a nuisance weed, hard to eradicate because of underground parts that remain behind when you try to pull up the plant.
Diodia virginiana This is a picture of Diodia virginiana on the North Tract of the Patuxent Research Refuge near Fort Meade, Maryland. Diodia virginiana,Geotagged,Summer,United States,Virginia buttonweed

Distribution

''Diodia virginiana'' is native to Cuba, Nicaragua, Mexico, Connecticut, and the south-central and southeastern United States. It is known from every state on the Gulf and Atlantic coasts from Texas to New Jersey as well as all the states in the Tennessee and Ohio River Valleys and the southern Great Plains. The species is also naturalized in Japan, Taiwan and northern California.

References:

Some text fragments are auto parsed from Wikipedia.

Taxonomy
KingdomPlantae
DivisionAngiosperms
ClassEudicots
OrderGentianales
FamilyRubiaceae
GenusDiodia
SpeciesD. virginiana
Photographed in
United States of America