There are many resources available for Iranian American students. (click title to open full answer)

You might want to take a look at the page of Scholarships for Iranian American Students posted on the site of the National Iranian American Council for ideas on what resources are available to your daughter.

If you are asking about scholarships for immigrant children, it would depend on the specific case, but one immigrant parent would often be sufficient.

US citizenship is granted to children who have one parent who is a US citizen, under typical circumstances. There is a well-sourced entry on US Naturalization law on Wikipedia that details many of the specifics. So, if your question is about eligibility for scholarships that require citizenship, she should be eligible.