Strychnos syntoxica Sprague & Sandwith Strychnos toxifera, called bush rope and devil doer, is a species of flowering plant in the genus Strychnos, native to Costa Rica, Panama, Colombia, Ecuador, Venezuela, the Guianas, Brazil, Peru and Bolivia.

[2] It is the principal source of calabash or gourd curare.

[3] Macusine B is an alkaloid inhibitor of adrenergic alpha-receptors and tryptamine receptors that can be isolated from Strychnos toxifera.

[4] This Gentianales-related article is a stub.

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