Broadleaf Signalgrass

Scientific Name: Urochloa platyphylla
Family: Poaceae


Spreading, highly branched summer annual rooting at lower nodes. Leaf blade short and wide, smooth on both surfaces, often partly folded or creased near the tip. Ligule a narrow membrane fringed with a ring of short hairs. Spikelets on underside of the two to six ascending branches. Angle of branches resembles a signal flag. Fruits in midsummer. May be common during turfgrass establishment. Also found in cleared and otherwise disturbed areas, cultivated fields. Propagates by seed.

Cultural Practices

Herbicide Use

Postemergence control for most grass weeds includes repeat applications of fluazifop or quinclorac. Check the herbicide label for specific application rates and turfgrass tolerance before use.