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Classification Key for the Genus Datura
by Dr. Richard Sanders and Erowid.org
Datura vs Brugmansia

Plants are herbaceous. May become somewhat
woody. Calyx points above the horizontal upon
emergence of the corolla*, and flowers are
generally erect.

Genus Datura
* Assuming the flowers fully emerge. D. leichhardtii often has flowers that do not extend and open before pollination occurs. As a result, the flower and calyx nod without the flower ever being fully exposed.

Plants are treelike. Flowers are pendulous or
nodding below the horizontal. The calyx nods to
horizontal or below when the corolla first emerges.

Genus Brugmansia
Photo by Dr. Richard Sanders
Photo by Scruff, © Erowid
Photo by Dr. Richard Sanders
Photo by Erowid



© 2002 Dr. Sanders & Erowid