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Weed Description: A perennial aquatic weed that spreads out horizontally forming dense mats in shallow water, mud, or in marshes. |
Marsh Pennywort: Hydrocotyle umbellata
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Weed Description: A perennial aquatic weed that spreads out horizontally forming dense mats in shallow water, mud, or in marshes. |
| Stems: Stems are capable of rooting at the nodes but also may be floating. Stems are approximately 1/4 inch in diameter. |  |
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Leaves: Alternately arranged, round in outline, smooth, and often shiny. Leaf margins have rounded teeth and each leaf occurs on a petiole that may reach 6 inches in length. Leaf blades may reach 2 inches in width and are bright green in color and have veins that originate from the central point of the leaf. |
| Flowers: Occur in clusters that
form an umbrella-like head. Individual flowers are very small and consist of 5 white
petals but many flowers occur together in a single cluster. Identifying Characteristics: Aquatic perennial with round leaves that have 'scalloped' margins. Additionally, the umbrella-like heads of small white flowers helps to distinguish this plant from most others. Marsh pennywort is very similar to water pennywort (Hydrocotyle ranunculoides), however water pennywort has a distinctive red spot in the center of the leaves unlike marsh pennywort. |
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