Well, maybe look like healthy "plants", but that have no active content.... from what I understand there is male & female cannabis plants, correct? And one is active? Well is there a strain that is inactive of the sex that normally yields THC, but has no fibers ("hairs") or buds which would yield. Somewhat like seedless grapes... or is this simply what hemp is? There should/would out-there somewhere be the minimum yield technically marijuana yielding plant strain out there in existence, if there hasn't been genocide on the poor yielding ones, that is, which I can see being likely heh.
most strains are technically active male and female. THC grows on both sexes, sometimes males are more potent believe it or not.
i was trying to point out, when saying all strains are good when cultivated properly, quality weed isnt a strain dependant thing, because noone regrows the shit weed, lol. im having trouble articulating, ill come back later.

, northern cali master kush, bubba kush, blue dream, diablo og, gods gift and some danky jack herer i just smoked yesterday