It ranges from Tamaulipas south to Oaxaca,[1] and some taxonomists believe it is also native to southern Arizona in the United States.
[2] Erythrina coralloides is a tree reaching a height of 12 m. Its seeds are elliptic, smooth, glossy, coral-red, with a salient longitudinal line on the back, and with a white hilum surrounded by a black border.
The clusters of red and white flowers on the Naked Coral Tree make it an attractive ornamental.
The seeds are very poisonous, containing erythroidine, a powerful muscle relaxant; erythroresin, an emetic; coralin; and erythric acid.
An analysis by Rio de la Loza showed the seeds contain 13.35 solid and liquid fat, 0.32 resin soluble in ether, 13.47 resin soluble in alcohol, 1.61 erythrococalloidine, an alkaloid, 5.60 albumen, 0.83 gum, 1.55 sugar, 0.42 organic acid, 15.87 starch, 7.15 moisture and 39.15 inorganic matter.