DSV 120x600 Mar2020

Pest Information

Smooth Water Hyssop

Smooth Water Hyssop

  • Latin Name: Bacopa Monnieri
  • Common Name: Smooth Water Hyssop
  • Other Names: Herb of grace

Pest Details

Smooth Water Hyssop
Smooth Water Hyssop
Smooth Water Hyssop


Native to the southeastern states of the U.S., and found from Florida to California in the southern half of the United States, as well as in Hawaii and the West Indies.


Found as a perennial immersed plant in shallow water or marshy locations, or in brackish water. Plants are low and sprawling and may cover wide areas.


Plants tend to be very short with smooth, fleshy stems and leaves. Leaves are oval and light green, and are opposite along the stems. The flowers are white and form as single flowers at the end of the stem. They have 4 or 5 petals that are joined, forming a tubular base.

Characteristicts Important to Control:

These aquatic to semi-aquatic plants require high moisture, and control of excessively wet areas reduces their chance of growth.

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