Dollarweed, also referred to as pennywort, has round leaves approximately one inch in diameter. The leaves are dark green and glossy with scalloped edges and measure 1 - 2 inches in diameter. The stalk that joins the leaf to the stem is attached to the center of the leaf. The flower is small with five white petals and forms in clusters on the end of long stems. Dollarweed spreads by seeds and rhizomes (underwater stems). It is a warm-season perennial.


  • 1

    Recreational activities such as swimming, fishing, and boating can be impaired and even prevented.

  • 2

    Dense mats of Aquatic weeds can block sunlight from native submerged plants.

  • 3

    Aquatic weeds greatly detract from the aesthetic appeal of a body of water.

  • 4

    Excessive growth can lead to fish stunting and overpopulation. This occurs because the production of too much habitat prevents effective feeding of small fish by larger fish. Aquatic weeds can cause fish kills.

  • 5

    Aquatic weed growth provides quiet water areas ideal for mosquito breeding.

  • 6

    Weeds impede water flow in drainage ditches, irrigation canals, and culverts and cause water to back up.


Dollarweed can be found in most of the contiguous states.