Whether rope or dope (hemp or marijuana bud), all Cannabis Strains are classified as Cannabis Sativa (C. Sativa). Under this category, there are different types: Cannabis Sativa (=C. sativa var. sativa), Cannabis Indica (=C. sativa var. indica), Cannabis Ruderalis (=C. sativa var. spondanea), Cannabis Afghanica (=C. sativa var. afghanica). Each has distinct growth patterns, look, smell, taste, size, etc.