Grass identification 11/06 Whitson

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Nov 17, 2025, 5:02:22 PM11/17/25

to Wendie Powell, Herbarium Google group

Hi Wendie,

You recently sent me 4 separate baggies individually numbered from Joyce Whitson in Wilson County.

Bags 2, 3, and 4 are all old world bluestem/Caucasian bluestem (Bothriochloa bladhii).

Bag 1 is purpletop tridens (Tridens flavus), which is a native grass and is substantially taller than the OW Bluestems.

Let me know if you have any questions.

Best, Mark

Mark H. Mayfield
Division of Biology
1717 Claflin Rd.
Manhattan, Kansas 66506-4900
785-532-2795 (voice)