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Bay Grasses Identification Key

Leaves with a Midrib

Look carefully at the shape and vein pattern of your specimen and compare it to each figure below.
Note: there are 3 choices for this level.

(Choice 1 of 3)

Potamogeton crispus

Diagram of Curly Pondweed showing transparent, wrinkled leaves with a single parallel midrib

Leaves are transparent, wrinkled or "curly" with a single parallel (from tip to base of leaf) midrib and many transverse (across leaf) veins. Leaf size is highly variable.

(Choice 2 of 3)

Ludwigia species

Diagram of False Loosestrife showing opaque leaves with both transverse and parallel veins

Leaves are opaque and not curly, with both transverse and parallel veins.

(Choice 3 of 3)

Potamogeton perfoliatus

Diagram of Redhead Grass leaf shape and veination

If you don't think your plant is represented above, try going back a level and choosing again.

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