Petticoat and Gown
The dress. When the gown was looped up, the petticoat was an important item of dress. The poppy is said to have a red petticoat and a green gown; the daffodil, a yellow petticoat and green gown; a candle, a white petticoat; and so on in our common nursery rhymes
1 The King's daughter is coming to town, With a red petticoat and a green gown. 2 Daffadown dilly is now coine to town, In a yellow petticoat and a green gown.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894