What kind of grass or sedge is this - Ask Extension
What is this? Why is part of it red?
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What kind of grass or sedge is this #842156
Asked July 23, 2023, 2:36 PM EDT
What is this? Why is part of it red?
Charlevoix County Michigan
Expert Response
Good Morning,
It looks like it could be Carex richardsonii.
Small densely clumped sedge (25 cm); leaves with reddish-brown sheaths; staminate spikelet separate, large (10-20 mm), pistillate spikelets short (10 mm); perigynia 3-sided and pubescent. You can send in a sample for a firm diagnosis. Plant & Pest Diagnostics (msu.edu)
Carex richardsonii (Richardson's sedge) - Michigan Natural Features Inventory (msu.edu)
Maintaining a grasses and sedges garden - Gardening in Michigan (msu.edu)
I hope this helps. Thanks for using our service.
It looks like it could be Carex richardsonii.
Small densely clumped sedge (25 cm); leaves with reddish-brown sheaths; staminate spikelet separate, large (10-20 mm), pistillate spikelets short (10 mm); perigynia 3-sided and pubescent. You can send in a sample for a firm diagnosis. Plant & Pest Diagnostics (msu.edu)
Carex richardsonii (Richardson's sedge) - Michigan Natural Features Inventory (msu.edu)
Maintaining a grasses and sedges garden - Gardening in Michigan (msu.edu)
I hope this helps. Thanks for using our service.
I have a patch of this sedge. We live in Charlevoix county in the city of Charlevoix. This sedge does nothing seem to have been reported it here before. How can I get rid of it in my lawn? Thanks
Dawne Jordan
Sent from my iPhoneOn Jul 25, 2023, at 6:33 AM, Ask Extension <<personal data hidden>> wrote:
Good Morning,
It's important to get a firm diagnosis to ensure you treat it properly.
I'm attaching links to university weed ID and control articles for you to dig further:
Turfgrass Weed ID-PSU
Weed ID & Mgmt.-UW-Madison
Control of Summer Annual Grass Weeds in Turfgrasses
Weed ID & Mgmt.-PSU
Lawn Weed Control Options-UMN
Identification & Control of Perennial Grassy Weeds-Purdue
Turfgrass identification - Ohio State
Depending on what grass you determine it is there may be a herbicide to kill it. Otherwise your options are glyphosate (roundup) or digging the offending areas out and then reseeding soon after mid-August. More info here:
Establishing A New Lawn Using Seed-MSU
Smart Lawns Tip Sheets-MSU
Control options for the homeowner are somewhat limited; Michigan State University Extension recommends looking for herbicides with the active ingredients sulfentrazone or halosulfuron. Sulfentrazone is a contact herbicide and will often provide quick control.
Always read, understand and follow the label directions. Mention or exclusion of specific products does not represent an endorsement or condemnation of any product by Michigan State University.
I hope this helps.
It's important to get a firm diagnosis to ensure you treat it properly.
I'm attaching links to university weed ID and control articles for you to dig further:
Turfgrass Weed ID-PSU
Weed ID & Mgmt.-UW-Madison
Control of Summer Annual Grass Weeds in Turfgrasses
Weed ID & Mgmt.-PSU
Lawn Weed Control Options-UMN
Identification & Control of Perennial Grassy Weeds-Purdue
Turfgrass identification - Ohio State
Depending on what grass you determine it is there may be a herbicide to kill it. Otherwise your options are glyphosate (roundup) or digging the offending areas out and then reseeding soon after mid-August. More info here:
Establishing A New Lawn Using Seed-MSU
Smart Lawns Tip Sheets-MSU
Control options for the homeowner are somewhat limited; Michigan State University Extension recommends looking for herbicides with the active ingredients sulfentrazone or halosulfuron. Sulfentrazone is a contact herbicide and will often provide quick control.
Always read, understand and follow the label directions. Mention or exclusion of specific products does not represent an endorsement or condemnation of any product by Michigan State University.
I hope this helps.
