Hemp and drug-type cannabis belong to the same species, yet their seeds lead to plants with very different chemical outcomes. Unlike industrial hemp stock bred to stay below legal thresholds, thc cannabis seeds come from lineages selected for tetrahydrocannabinol dominance rather than fiber, grain, or cannabidiol. The two are visually indistinguishable at the seed stage, which is why documentation and source matter. Regulators typically classify them by the chemotype of the resulting plant.