Irises of all kinds will occasionally bloom with extra or missing flower parts. It seems to correlate with unusual weather, but I've not heard a good explanation.
Rod
On Monday, April 4, 2022, 05:41:00 PM CDT, Mary Sue Ittner via pbs <pbs@lists.pacificbulbsociety.net> wrote:
This iris was seen in the woods on the Mendocino-Sonoma coast. Our
native iris is Iris douglasiana and an inland one is Iris purdyi. They
rarely are seen in the same area and although I'm seen a lot of Iris
douglasiana on my walks, I've never encountered one that looked like
this. It seems to be divided into 4s instead of 3s or 6s as is the usual
floral structure for flowers in the iris family. I'm curious if others
have seen this happen and have clues as to how it happens.
Mary Sue
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