Hemp is a cousin different "branch" of the family but is not the same . Unfortunately the press has made the THC the factor in determining what is and is not cannabis or hemp (0.3%). That is REALLY wrong and what confuses people.
That is why hemp CBD and cannabis CBD are NOT the same, though telling this crowd that gets your scorned.
Great paragraph:Hemp seed oil vs cannabis oil: Are they the same?
Living in NC I would be quick to tell you that trying to grow ANY STRAIN under indica, or sativa of combo hybrid will not end well.
That's not to say I agree with it--but there is a distinction.
And as you noted hemp is more closely related to sativa--a tall growing variety, and indica is more "bushy" in stature. Making it ideal indoor growing.
Just about every strain in Med MJ today is a hybrid--and that bodes well for finding a cross that has all the benefits of CBD and none of the drawbacks of THC.
At least that is one of the tings we are shooting for.