Mechanism maps

Three views over one graph. A species map runs plant → chemical class → marker compound on one side and plant → drug class → expected effect on the other, so chemistry and pharmacology meet at the species. A class map inverts it: one drug class at the centre, every botanical that reaches it grouped by family. A composite map merges several botanicals and lets shared drug classes collapse into single convergence nodes, which is how additive risk in a polyherbal formulation becomes visible.