Re: Distinguishing Pseudacorus from Versicolor?

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Helen,

Looking at several varieties of each species in my garden, pseudacorus does have a prominent ridge in the center of the leaf composed of a single vein. Versicolor has a less prominent ridge composed of 3 veins. I'd suggest someone compare leaves from a sample of plants in the wetland to see if they can be divided into two categories. Each volunteer could be armed with a sample leaf from each species when identifying the pseudacorus for eradication.

Ken Walker

James Harrison PhD wrote:

Pseudacorus has a sharp vein in the middle of each leaf.  Some other iris have a less prominent vein, like JI,  but I think this is the easy way to pick out Pseudacorus.