Sago Pondweed

Stuckenia pectinata

Sago pondweed has slender, branching stems with:

• Long, thread-like leaves that taper to a point and grow to about 4 inches long.
• Leaves are arranged in an alternate pattern along the branches.
• Long, straight roots with thin rhizomes.
• Tubers that grow deeply into the bottom sediments.

Where does sago pondweed grow?

Sago pondweed is generally found in fresh non-tidal to moderately brackish waters of the Bay and its tributaries.

• Grows in silty or muddy sediments.
• Tolerates strong currents and wave action better than most other underwater bay grass species because of its long roots and rhizomes.
• Tends to be less abundant in years with high rainfall and lower salinities.

How does sago pondweed reproduce?

Sago pondweed reproduces sexually from June through August:

• Bead-like flowers bloom along a spike at the end of the stalk.
• The flowers release pollen, which floats on the surface of the water.
• After being fertilized, seeds form on the spike and remain there until autumn, when they fall into the water.

Asexual reproduction is more common for sago pondweed:

• Tubers form at the ends of the stems, leaves or rhizomes.
• They break off and grow into plants later in the spring.

Other facts about sago pondweed:

• One of the most valuable food sources for waterfowl in North America. Its seeds and tubers are rich in nutrients.
• Can be confused with horned pondweed and widgeon grass. You can distinguish sago pondweed by its bushy clusters of leaves that are arranged in an alternate pattern along either side of the branches.