Unidentified Yellow Flower

Unidentified Yellow Flower

Observation - Unidentified Yellow Flower. Description: Possibly a member of the cabbage family? But nothing looks quite like it in my book - all the yellow-flowered cabbages seem to have very narrow leaves, and this doesn't. Apologies for poor picture.

Possibly a member of the cabbage family? But nothing looks quite like it in my book - all the yellow-flowered cabbages seem to have very narrow leaves, and this doesn't. Apologies for poor picture.