Re: White Iris pseudacorus wc Bear Grass Creek, Jefferson City...

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I would suspect so. Here are a few photos from a population in Washtenaw County, Michigan blooming last week. The typical wild form, a pale yellow form and a multipetal form all occur here abundantly, probably covering an acre. There used to be more (at least blooming) plants, but it looks like they're slowly in turn being outcompeted by the invasive cattail hybrid Typha Ãglauca, which is taller. Iris virginica v. shrevei would probably have occurred there before the pseudacorus became established.

Sean Z

Zone 6a

SE Michigan

On Sun, Jun 15, 2014 at 12:19 PM, d*@aol.com [iris-species] <i*@yahoogroups.com> wrote:

 

Hi all,

 

That is a beautiful iris. Does anyone know if the white forms are as invasive as the yellow forms?

 

Dorothy Willott

 

 

In a message dated 6/13/2014 8:20:51 P.M. Eastern Daylight Time, i*@yahoogroups.com writes:

 

Here is photo of white pseudacorus collected by Bruce Richardson, near
Hamilton Ontario.

Chuck Chapman

-----Original Message-----
From: Chuck Chapman i*@aim.com [iris-species]
<i*@yahoogroups.com>
To: iris-species <i*@yahoogroups.com>
Sent: Fri, Jun 13, 2014 8:14 pm
Subject: Re: [iris-species] White Iris pseudacorus wc Bear Grass Creek,
Jefferson City, KY

 
I used to have a cream coloured pseudacorous collected locally in
wild,. And a very white clone originally collected locally by Bruce
Richardson (one of SIGNA founders). Have also seen another white
clone, but never collected it. Also locally.

Chuck Chapman , Guelph Ontario.

-----Original Message-----
From: Mark Cook h*@gmail.com [iris-species]
<i*@yahoogroups.com>
To: iris-species <i*@yahoogroups.com>
Sent: Fri, Jun 13, 2014 8:06 pm
Subject: Re: [iris-species] White Iris pseudacorus wc Bear Grass Creek,
Jefferson City, KY

 
     Louisville, Kentucky I mean.  Sorry for the typo.

Mark A. Cook

Dunnellon, Florida USA     

AHS Region 12    USDA Zone 8b

On Fri, Jun 13, 2014 at 8:05 PM, Mark Cook
<h*@gmail.com> wrote:
Roberto,

     I wonder if they could be natural hybrids with another species -
maybe a white form of Iris virginica?  "Jefferson City, KY" is actually
Jefferson County - Lousiville, Kentucky where the Kentucky Derby is
run. 

Mark A. Cook

Dunnellon, Florida USA     

AHS Region 12    USDA Zone 8b

On Fri, Jun 13, 2014 at 7:01 AM, r*@tiscali.it
[iris-species] <i*@yahoogroups.com> wrote:

Hi all,
in autumn 2012 I sowed the SIGNA seeds labeled as "Iris pseudacorus wc
Bear Grass Creek, Jefferson City, KY (10LV131)". Today, two of these
plants have flowered: one has normal yellow flower, while another has
developed a white flower with little obvious signal. These seeds should
be collected in nature. How to be interpreted? An example of natural
diversity? It's difficult, but I can not exclude to 101% the arrival of
a seed from my other iris (I grow various white flower I.pseudacorus).
Thank you.