Plantae > Tracheophyta > Magnoliopsida > Lamiales > Acanthaceae > Hygrophila > Hygrophila polysperma

Hygrophila polysperma (East Indian hygrophila; Miramar weed; Indian swampweed; Hygro)

Synonyms: Adenosma polysperma; Hemiadelphis polysperma; Hemiadelphis polyspermus var. joshianus; Justicia polysperma; Ruellia polysperma

Wikipedia Abstract

Hygrophila polysperma, commonly known as dwarf hygrophila, dwarf hygro, Miramar weed, Indian swampweed or Indian waterweed, is an aquatic plant in the acanthus family. It is native to Bangladesh, India, China and Malaysia, and has also been introduced to the US states of Florida, Texas and possibly Virginia.It is listed on the Federal Noxious Weed List in the US and is illegal to import and sell in a number of states including Kansasand South Carolina.
View Wikipedia Record: Hygrophila polysperma

Invasive Species

The herbaceous perennial Hygrophila polysperma, commonly known as the Indian swamp weed, is a freshwater amphibious herb that was most likely introduced through the aquarium trade. It is found in warmer climates and prefers flowing streams, but may also be found in slow-moving waters and in lakes. It is a fast-growing and fast-spreading species that out-shades and out-competes other submersed plants. Hygrophila polysperma interferes with navigation and has been known to compete with other aggressive non-native invasive plants. Hygrophila polysperma is difficult to control. Mechanical harvesting only fragments the plants and increases its distribution. Typical biological control agents for aquatic invasives do not affect this species and most registered aquatic herbicides only provide marginal control.
View ISSG Record: Hygrophila polysperma


Lifespan [1]  Annual/Perennial
Structure [1]  Herb


North America;



Attributes / relations provided by
1USDA Plants Database, U. S. Department of Agriculture
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Abstract provided by DBpedia licensed under a Creative Commons License
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