All Forsythias are of the Class Magnoliopsida.
Most species/varieties/hybrids of forsythia are gold/yellow colored,
e.g. * Forsythia 'Northern Gold' * Forsythia intermedia (F. suspensa x F. viridissima) -'Beatrix Farrand', -'Lynwood', -'Spectabilis' See Related Links below this box for botanical classification of forsythia.