The term 'Aster Relative' refers to a group of flowering plants that are related to the Aster genus. The crossword solutions for this term are OXEYE (5 letters), DANDELION (9 letters), Tansy (5 letters), and DAHLIA (6 letters). All of these plants are members of the Asteraceae family, which is the same family as the Aster genus. OXEYE, DANDELION, Tansy, and DAHLIA are all examples of Aster relatives, and they are all flowering plants that have similar characteristics.