CN1C[C@@H](C=C2[C@H]1CC3=CNC4=CC=CC2=C34)C(=O)N The pharmacological targets through which this compound exerts its effects.
Living organisms in which this compound is naturally found.

Tropical climbing vine whose seeds contain significant amounts of LSA (ergine), a naturally occurring lysergamide.

Parasitic fungus of grasses and cereals that replaces the seed with a dark, banana-shaped sclerotium packed with a complex pharmacopeia of ergoline alkaloids — the chemical lineage from which LSD itself was eventually derived.

Ornamental climbing vine whose seeds contain lysergic acid amide (LSA) and related ergoline alkaloids. Used ritually by Zapotec and other Mesoamerican peoples as a divinatory complement to ololiuhqui.

Climbing morning-glory vine whose dark seeds contain the ergoline alkaloid LSA (ergine). Known to the Aztecs under the Nahuatl name tlitliltzin and used in parallel to the seeds of Rivea corymbosa (ololiuqui). Modern horticultural cultivars sold as "Heavenly Blue", "Pearly Gates", and "Flying Saucers" all derive from this species.

Climbing vine whose seeds contain LSA (ergine). One of the most important entheogens in ancient Mesoamerican cultures.
- Hofmann 1963
- Traditional use