A Simple Dichotomous Key to the Sedges

Earlier today, I posted my simple but effective guide to identifying insects and spiders. I hope you are finding it helpful.

Perceptive reader John Blakeman pointed out that a similar format would be helpful for identifying sedges (Carex sp). He’s absolutely right, of course, and it just happens that I have also developed that particular guide. I was going to release it at a later date, but I can see that the demand is high and I don’t want to hold people back.

As with other sedge keys you may be familiar with, this key works best if the sedge is in fruit. What if it’s not? You just have to wait until it is. This is not the fault of me or my key, it’s just the way nature works. Sedges refuse to be identified when they are not in fruit. They’re sorry if that’s inconvenient for you.

Without further ado, here is my simple identification guide for sedges.

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About Chris Helzer

Chris Helzer is Director of Science and Stewardship for The Nature Conservancy in Nebraska, where he conducts research and supervises the Conservancy’s preserve stewardship program. He also helps develop, test, and share prairie management and restoration strategies. Chris is also dedicated to raising awareness about the value of prairies through his photography, writing and presentations. He is the author of The Prairie Ecologist blog, and two books: The Ecology and Management of Prairies and Hidden Prairie: Photographing Life in One Square Meter. He is also a frequent contributor to NEBRASKAland magazine and other publications. Chris and his family live in Aurora, Nebraska.

11 thoughts on “A Simple Dichotomous Key to the Sedges

  1. I sight id sedges all the time without fruit. Although, it depends upon the sedge. Having them in my garden helps.

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