Twisting plants

Cynthia Galloway kfcmg00 at tamuk.edu
Fri Jan 21 15:04:17 EST 2000


I received the following question was posed by a friend and I'd
appreciate any help.
My question is, do they twist clockwise in the southern hemisphere?

"What do you know about helical twisting in plants?  Lots of plants
are twiners and all or most twist counterclockwise (viewed from the
top) like a common screw.  In some mosses the leaves are neatly
helically twisted around the stem, and in others, the individual leaves
are neatly helically twisted, hence my interest.  What is the underlying

reason or mechanism that causes the twist, and why counterclockwise?  I
have looked at the web and can't find anything technical."

Cyndy

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