
Is this plant a weed?
Smooth Crabgrass, Digitaria ischaemum Schreb. ex Muhl
Credit: Sam Bauer
Credit: Sam Bauer
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Found in:
Characteristics:
- Annual grass that grows best during warm weather (summer)
- Low growing and spreading
- Leaf blade is flat with prominent midrib; hairless on upper and lower surfaces
- Older sheaths and leaves can become dark reddish to maroon in color
- Flower head consists of 2-10 finger-like spikelets
- Spikelets are dark purple at maturity
- Roots are fibrous; no underground stems (rhizomes) produced
Significance
- Maintain minimum 2 1/2 - 3” mowing height and good turfgrass density
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