University of Maryland Extension

Green Kyllinga

(More lawn weeds)

Green Kyllinga  (Kyllinga gracillima)

Green kyllinga

Life cycle

Perennial, in sedge family.

Growth Habit 

Produces a network of numerous underground stems (rhizomes) and can root and send out new leaves at each stem node. Has narrow, grass-like leaves. Often mistaken for nutsedge but unlike nutsedge which grows upright, kyllinga spreads into dense mats and does not have underground tubers. Can handle close-mowing.

kyllinga seedheads
Kyllinga seedheads and flower stalks


Prolific seeder. 

Conditions that favor growth

Sunny, moist areas but can move into shadier, dry spots.

Management In Lawns

  • Cultural practices
    Maintain healthy, dense turf that can compete and prevent weed establishment.

  • Mechanical Management
     Hand pulling or using an appropriate weeding tool are the primary means of mechanical weed control in lawns. This is a viable option at the beginning of an infestation and on young weeds. Hand pulling when the soil is moist makes the task easier. Weeds with tap roots like dandelions or have a basal rosette (leaves clustered close to the ground) like plantain are easier to pull than weeds such as Bermudagrass (wiregrass) or creeping Charlie (ground ivy) that spread with stolons or creeping stems that root along the ground.

  • Chemical Treatment in Lawns
    A difficult weed to control, there are no preemergents labeled to control it. Postemergent herbicides can provide control/suppression, but best used when kyllinga is young and before it forms dense mats.
    Look for the active ingredients: Common Name: Halosulfuron; Trade Name: Sedgehammer and others or Common Name: Sulfentrazone

  • Organic Lawn Herbicides

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