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WEED ID · PERENNIAL SEDGE

Green kyllinga

Also called Kyllinga, shortleaf spikesedge

A sedge, not a grass. It forms low patches that look different from your lawn and spreads from underground stems.

Green kyllinga clump growing up through lawn grass beside brick pavers, with slim green leaves and small round flower heads
Photo: Macleay Grass Man, CC BY 2.0

How to spot it

  • Fine, narrow leaves in patches that spread outward like turf
  • Triangular flower stalks, 2 to 8 inches tall
  • Small, round green flower head about 3/8 inch across
  • Three leaves spread out right below each flower head
  • Turf can look bumpy or uneven where patches spread

Why it shows up

Green kyllinga grows from rhizomes and from seed. It does best in wet, sunny spots and low areas. Mowing and foot traffic can spread pieces and seed.

How we treat it

Kyllinga is a tough perennial, so one visit is rarely enough. We spot treat with a product labeled for sedges and for your grass type. We come back for repeat visits as new growth shows up. We also fertilize to keep your turf thick.

What you can do

  • Check for leaks, drainage problems, and overwatering. Wet soil feeds kyllinga.
  • Clean your mower before you move from a weedy spot to clean turf.
  • Call early, when patches are still small.

Read the guide

WANT IT HANDLED?

Let a licensed applicator take it from here.

Tell us about your lawn. We’ll get back to you with a free quote.

Prefer to talk? 817-382-1722

Licensed applicator, Texas Department of Agriculture · License #0984138

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