Oklahoma State University Stillwater, OK | |
Oklahoma Alfalfa |
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Windmillgrass |
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COMMON NAME: | Windmillgrass |
SCIENTIFIC NAME: | Chloris verticillata Nutt. |
TYPE: | Simple Summer Perennial Weedy Grass |
DESCRIPTION | |
Germination: | May-July. |
Reproduction: | By seed July-September. |
Stems: | Erect to decumbent, forming clumps. |
Leaves: | Sheaths flattened at base; blades 1/8 inch wide. |
Flowers/ Inflorescence: |
Spikes terminal, horizontally spreading 2 to 6 inches, 1 fertile floret/spikelet with whole inflorescence breaking from plant at maturity. |
Fruit: | Seed unit with lemma and palea attached, with awn several times longer than seed. |
FOUND: |
Throughout the state in thinning stands. Not considered a major competitor. Occupies the spaces between the alfalfa plants, and prevents establishment of weedy annuals. |
CONTROL: |
No good herbicide option for control. |
In Alfalfa | Plant |
Leaf | Plant | Seed Head |
Additional Windmillgrass Images |
Jim Stritzke Former Alfalfa Weed Control Specialist Department of Plant and Soil Sciences Oklahoma State University |