[1][2] The main building blocks for biosynthesis of elymoclavine are tryptophan (Trp) and DMAPP.

Then decarboxylation is followed by the 6-member ring formation and epoxide opened to form terminal alcohol (Step E).

Then the second 6-member ring forms and agroclavine is obtained after additional reductase (Steps G and H).

Morning glory: Argyreia nervosa (Hawaiian Baby Woodrose), Ipomoea spp.

(Morning Glory, Tlitliltzin, Badoh Negro), Rivea corymbosa (Coaxihuitl, Ololiúqui)