Cereus

The name of this Genus is derived from the Greek "cereus" for wax.

C. alacriprotanus -

Contains: hordenine

C. donkelaarii -

Reported to contain unspecified alkaloids.

C. forbesii -

Contains tyramine.

C. glaucus -

Contains: tyramine, hordenine.

C. jamacaru ( de Candolle ) -

(mandacaru) A cactus native to Brazilian coast to the inland desert. Now widespread and cultivated as far away as the west indies. Has a short, woody trunk to 35 cm thick, and attains a height of 10 meters, having 7 - 8 ribs. Has a variable number of spines, usually 15 to 20, of which 5 to 7 are short radial spines. Young plants are a pale blue color, turning darker as they age.

Flowers are greenish with white towards the center. Large, red fruit is produced.

Contains tyramine. Also reported to contain traces of mescaline.

C. peruvianus -

Contains: hordenine, tyramine.

C. randiflorus -

Reported to contain unspecified alkaloids.

C. rostratus -

Reported to contain unspecified alkaloids.

C. scandens -

Reported to contain unspecified alkaloids.

C. serpentus -

Native to Mexico. Also classified as Nyctocereus serpentinus.

Has edible fruit.

Reported to contain unspecified alkaloids.

C. validus -

Native to Argentina.

Contains: 3-nitrotyramine, 4-hydroxy-3-nitro-phenethylamine (.19%), tyramine.