LSA, also known as d-lysergic acid amide, d-lysergamide, and ergine, is a psychedelic alkaloid of the ergoline family. It can be found naturally in many plants, but is most commonly found in the seeds of the Morning Glory and Hawaiian Baby Woodrose Vine. It has also been found in Sleepygrass (Stipa robusta) infected with an Acremonium endophytic fungus. Also the fungus Claviceps purpurea has shown to contain LSA.
Upon analysis, Albert Hoffman found LSA to be very similar to LSD in structure. The main difference being that LSA has NH2 whereas LSD has N(C2H5)2.
Jonathan Ott reported large, over ten-fold variations of alkaloid concentration from batch to batch of various LSA seeds. Some other ergoline alkaloids discovered in the seeds were: ergonovine, elymoclavine and lysergol.
LSA is largely insoluble in water, but can be dissolved in ethyl alcohol and methyl alcohol.