Had some several years ago. All on the same cross. After a year or two they straightened up.
Zone 6 KY
From: Linda Mann <email@example.com>
To: iris-photos <firstname.lastname@example.org>
Sent: Tue, Sep 10, 2013 11:16 am
Subject: [iris-photos] HYB: corkscrew leaves
I've never seen anything quite like this. Only seedling out of several
hundred that has leaves that are all twisted up. It's kind of appealing.
Any of the rest of you ever seen leaves do this?
Linda Mann east TN zone 7b