[Taxacom] leaves facing the same direction

Mario Blanco mblanco at flmnh.ufl.edu
Fri Oct 19 15:17:58 CDT 2007

Hi taxacomers,
I am looking for a term that describes the condition in which all the 
leaves in a given branch (more correctly their adaxial sides) face the 
same direction. Usually the petioles are twisted (90 degrees if the stem 
has distichous phyllotaxy).

Someone suggested "complanate", but this merely means that the structure 
is flattened.

I would appreciate if anyone knows a botanical term for this condition, 
or if a zoological term exists to describe something similar 
(dorsiventral structures facing the same direction, but that normally 
face random directions).

Mario A. Blanco
Department of Botany
University of Florida
220 Bartram Hall
Gainesville, FL 32611-8526

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