Agriculture Reference
In-Depth Information
Yellow Nutsedge
Found all over the United States in cultivated fields, gardens, grainfields, rich or sandy
soils, Yellow nutsedge, Cyperus esculentus , is a serious perennial weed. It reproduces by
seeds and weak thread-like stolons that end by hard tubers. Stems of this weed are tall,
simple and triangular in shape; the pale green leaves are three-ranked, about as long as the
stem, with closed sheaths mostly at base. Yellow nutsedge produces spikelets that are yel-
low to golden-brown, strongly flattened, mostly four-ranked along the wing-angled rachis,
blunt, the tip acute to round.
Yellow Nutsedge
Appearance of nutsedge indicates soils seriously out of sorts with very low levels of cal-
cium and phosphate and very high levels of potassium and magnesium. Iron, sulfate, boron,
selenium, salt and aluminum levels are likely to be high. Soils are also likely to have low
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