Is there a general name for poetic forms that consist entirely of pairs of rhymed lines, i.e. where the rhyme scheme goes aabbccdd..., and the rhyming lines do not necessarily have the same meter.
For example: https://www.poets.org/poetsorg/poem/prisoner-zenda
I vaguely remember once coming across the term I'm looking for, but now I cannot find it again. All I can find are more specific terms, like "Alexandrine couplets" or "heroic couplets".
I suppose "couplets" may be the best I'll get, but I find it unsatisfactory. For one thing, "couplet" refers to individual pairs of lines, rather than to a form. (E.g. a sonnet may end in a couplet, but it does not have the form aabbccdd....) Moreover, I gather that the term "couplet" implies that the paired lines not only rhyme but also have the same meter. Finally, "couplet" may apply to pairs of non-adjacent lines that rhyme (e.g. ababcdcd...)
The level of generality I'm after is similar to that of the term "blank verse". (I.e. it encompasses many specific forms.)
(I hope the answer to this question is not "doggerel.")