Ou (Tamarind, Temerhindi, Tamarhindi) for Ashkenazim - Is tamarind Kitniot?

I read that tamarind is a legume (I don’t know if that is correct).
If so, does that mean tamarhindi is kitniot? Is it not acceptable for Ashkenazim?
(The other ingredients in the jar are sugar and citric acid).

Thank you.

Kosher for Pesach for all
I never heard of it being a problem