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The UC Guide to Healthy Lawns

Sheaths


The lower portion of the leaf blade that encircles the stem is the sheath.

Sheath is split
Margins of the sheath overlap
Sheath is closed
Illustration of collar with split sheath
Illustration of sheath with overlapping margins
Illustration of sheath with closed margins

Statewide IPM Program, Agriculture and Natural Resources, University of California
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