Do you mean THC-delta 9 ?
there`s a few THC and TH and T cannabinoids, and most strains contain their own mix depending on genetics and how they are treated
Classically its the size/structure that`ll make someone say "sativa" or "indica"
but more upto date notions seem to be that most strains are hybrids now days there`s a certain terpin that mango`s, weed, chestnuts, hops and a few things have
but its not a very obvious one, anyone this smell when mixed with a few others seems to make most people more relaxed
a certain level was decided upon I can`t remember, under that they now say "sativa" over they say "indica"
the power of terps is fast hitting and controls how your body will react to the thc/cbd mixture its as important as the cbd/thc mixture in fact for vaporizing and smoking it may make more of a difference to the persons "high" than the thc/cbd ratio
but yes thc-d9 should be exactly the same or as the same as 2 molecules can be, but like I said there`s not just one kind of THC but THC-D9 is the main one people mean so I assume you mean that
Indica`s flower faster so normally they get ripe sooner and have more degraded thc`s where as sativas normally have more thc-d9 unless allowed to flower longer the it really depends
Take a look at the full list of cannabinoids there`s quite a few
Oh its Myrcene after a certain % some people call any plant an indica.... it seems to be a smell that comes along with other smells normally makes them smell more savory/spicy and herby unlike the kinda sweet lemon most sativas seem to give
but also caryophyllene reacts with the body's cb2 receptors in a big way, smell effects High, its why so many stoners care about the smell/taste so much