Re: Iris what species?

 

I not so confident on the usefulness of the stems. The I. hexagona that I grow has some zig to the stems as well and the white brevicaulis "Trail of Tears" has relatively straight stems. None of them lay on the ground for me except one collected form. Actually, I'm not so confident in the recognized species in the group. The lines blur!

Rod


From: Dennis Kramb <dkramb@badbear.com>
To: iris-species@yahoogroups.com
Sent: Mon, April 18, 2011 8:38:58 AM
Subject: Re: [iris-species] Iris what species?

 

Argh!  I hate being wrong.  But I think I'm wrong.

An indicator for brevicaulis is a pubescent ridge in the center of the yellow signal area.  At first glance there appears to be none on your flower, Mark, so I thought virginica.  But after studying it more carefully it does appear to have this pubescent ridge (I think I see it on the fall on the top-right).

Here's a photo I took years ago to show the pubescence.  http://www.signa.org/index.pl?Display+Iris-brevicaulis+1

Zig-zag stems are the REAL give-away for brevicaulis.

Dennis in Cincy


On Mon, Apr 18, 2011 at 9:13 AM, Rodney Barton <r*@yahoo.com> wrote:


Mark,

It's definitely hexagonae. Not virginica as some have suggested. It seems to be very short and that would make it brevicaulis most likely. An oval cross section to the rhizome is another clue. 

Rod

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