Re: Plant I’d

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Mark Mayfield

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Oct 21, 2025, 12:49:58 PM10/21/25

to Rod Schaub, Herbarium Google group, Rod Schaub

Hi Rod,

I can identify this as a dayflower for sure, one of two species that occur in the area. I think it is probably Asiatic Dayflower (Commelina communis), as you suggest but I can't see the best distinguishing features in this image. In an agricultural field setting, I've heard these are hard to get under control. The rhizomes are easily broken into pieces and that allows them to spread fast. In a yard setting, there is less will to control it because some people see it as a weed, while others don't (and that's probably the crux of your question here). It can proliferate in disturbed, dry ground where other plants don't compete well. In a healthy lawn, or a well-kept garden, it is generally not a problem.

Mark

Mark Mayfield

Division of Biology
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Manhattan, Kansas 66506-4900
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Office: 304 Bushnell Hall

From: Rod Schaub <rsch...@gmail.com>
Sent: Tuesday, October 14, 2025 8:42
To: Mark Mayfield <mark...@ksu.edu>
Subject: Plant I’d

This email originated from outside of K-State.

Mark is this Asiatic dayflower. Should it be controlled?
Thanks!
Rod Schaub