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Questions and Answers: 2021

Question: Re my recent Carex question, I pulled back the scale and found the perigynium to be a little over 1mm, …

• Question

  Re my recent Carex question, I pulled back the scale and found the perigynium to be a little over 1mm, with the beak (if it is the skinny top part) somewhat less than .5mm. Some nearby clumps have started spreading. This is cleared land smothered in mulch, so life is just returning. I will watch it throughout the season. Thanks so much.

  Answer

  markfanty, thank you--we will need measurements from the fully mature perigynia (i.e., the ones that contain fruits, called achenes). If you can get a close-up image or two of the perigynia when they are mature and some measurements at that time, I should be able to give you a better guess. We will also need to search for carpellate spikes borne from the base of the plant (which I can explain what those are and how to locate them, if needed). Best wishes.