Bay Grasses Identification Key
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Leaves Without a Midrib
Using a ruler, measure the width of several of the largest
leaves of your plant and select from the following choices:
Warning!! This measurement does not always result in proper identification as leaf widths can change due to environmental factors and time of year.
Stuckenia pectinatus
(formerly Potamogeton pectinatus)
Spikes at some leaf nodes, all leaves 0.5 - 2 mm wide
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Ruppia maritima
All leaves are <0.5 mm wide.
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If you don't think your plant is represented above try going back a level and choosing again.