Louisiana ’s quick , temperate environment is ideally suited for the growth of a wide variety of lawn smoke species . Common lawn weeds of Louisiana fall into two categories : broad - leaved and grass - comparable weeds . Broad - leaved weeds do not resemble lawn grass and are distinctly seeable and identifiable by their panoptic parting and flowering stem . forage - corresponding weeds , as the name implies , look very similar to lawn grass and in some example , actually are a right grass species .

Annual Sedge

yearly sedge ( Cyperus brevifolius ) is a grass - like perennial that forms dense matting of dingy - green leaves up to 6 inches thick . one-year sedge broadcast by above - terra firma seeds and underground rhizome . Overwatered , dampish lawn areas are prostrate to one-year sedge .

Bristly Mallow

Bristly mallow ( Modiola caroliniana ) is a broad - leaved perennial with light - green , shining leave of absence forming on multiple stem and nodes . During early leaping , orangish - red heyday are visible . Pull out by manus or apply a post - emergence weed killer on existing weed .

Black medic

Black medic ( Medicago lupulina ) is a broad - leave , summer annual with greenish , clover - like foliage and icteric flower . Black trefoil boom in infertile , downhearted atomic number 7 grunge and produce semen near the understructure , set aside propagation even in a regularly mowed lawn . Add N productive fertilizer to your lawn to help prevent black medick smoke from forming .

Broadleaf Plantain

Broadleaf plantain ( Plantago major ) is a broad - leaved , low growing , perennial dope with wide , green leaves curve outwards from a cardinal stem . Broadleaf plantains originate most quickly during the previous summertime and give rise a perforate seed pod grow vertically from the central knob . Broadleaf plantain can be physically removed by hand or sprayed with a selective broadleaf herbicide .

Chamber Bitter

Chamber bitter ( Phyllanthus urinaria ) is a grass - similar , warm - season annual , with grooved , vertical , unripe leave of absence . This locoweed propagates by exploding seed pods , which scatter seed around the lawn . draw isolated weeds by paw , as necessary .

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