common chickweed noun8 •An herb of species Stellaria media. •Any of several plants resembling Stellaria media, of species: •Ageratum conyzoides (billygoat weed) •Cerastium (mouse-ear chickweed) •Holosteum (jagged chickweed) •Moenchia (upright chickweed) •Paronychia •Other species in Stellaria formscommon chickweeds
