Back in the days you had the hemp industry and the bird seed industry.
The hemp industry were using hemp varieties which were a mix of European and Chinese hemp.
The bird seed industry on the other hand were using Indian hemp, because those were varieties not single stalk, but with a lot of branches, which were handy for seed production.
Kentucky hemp was tested back then by Parke Davis and Eli Lily and they found it was just as potent as the import from India.
The hemp industry were using hemp varieties which were a mix of European and Chinese hemp.
The bird seed industry on the other hand were using Indian hemp, because those were varieties not single stalk, but with a lot of branches, which were handy for seed production.
Kentucky hemp was tested back then by Parke Davis and Eli Lily and they found it was just as potent as the import from India.