American Brugmansia & Datura Society Inc.

Genus Brugmansia or genus Datura?

Plants are tree-like
Flowers are pendulous or nodding below the horizontal. 
The calyx nods to or below the horizontal when the 
corolla first emerges 
See photo

Genus Brugmansia

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.

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