Hi there, I'm confused by your reworded question. Are you asking what plants are legal that contain schedule I drugs like DMT? Or are you asking what plant-based drugs are legal? As Parshvik said, there are no legal plants that contain schedule I drugs. DMT and analogues are schedule I.
Ahh...
Ok I see the problem.
What I was thinking about is this:
Making a list of plants and cross referencing them with where they grow and what their legal status is to facilitate perhaps making a map, a map of the world, not JUST the United States.
Try not to take this wrong, but the United States is not the only country in the world.
Uruguay for example now has completely removed all the laws against marijuana. That just one country, and even in the United States laws in different places vary, there are places called reservations where the laws are different about certain things. This makes including the United States helpful but not everyone lives there.
Heres an example of an idea of how a map of say, Singapore, the state of texas and the country of Uruguay would look:
Singapore would be black and orange stripes and blink on and off.
They can (or could last I heard) behead you for a joint.
It would have a skull and crossbones icon.
Texas would be bright red.
They have horrifying laws about drugs and outrageous sentences.
Texas would have a cross icon perhaps to denote excessive religious intensity and poor governmental decision making.
Uruguay would be green
They would have a icon of some sort that denotes intelligent thought and progressive government policies.
Do you see what Im getting at here?
The icons and reasons are just tossed out as loose ideas.
This would be a global list, and perhaps a map, it could be a useful tool I think. Hard to make but useful none the less.