Looking for a taxonomic dataset that links tree genera (or species) to families I am looking for a taxonomic dataset that would allow me to links tree genera (or species) to families. In particular, I am interested in the tropical species found in the Amazon.

I found a long but not exhaustive list on Wikipedia:
https://en.wikipedia.org/wiki/List_of_trees_and_shrubs_by_taxonomic_family

After processing it, I realised it contains information about 404 genera, while the dataset I am dealing with has around 600. (in the end, I only got 23% of my data covered, very sad)

Does anyone know if such a crosswalk file exists, in some scientific article or somewhere in the Internet?

Moreover, please tell me if there are other StackExchange websites which could be more appropriate, I wasn't sure of where to post this.
The NCBI taxonomy is a quite extensive resource: https://www.ncbi.nlm.nih.gov/taxonomy

I would thus expect there is a good chance that it covers all of the taxa that you are interested in.  It officially claims that it is not an authoritative source, but it's still pretty darned good.