Crassula helmsii
Crassula helmsii
(swamp stonecrop)
Plants
Exotic

Impact ID5653
Impact TypeCompetition
Study TypeExperimental
Study LocationLaboratory
Impact DescriptionCrassula helmsii is able to remain green in the winter and able to continue photosynthetic activity in the colder months giving it a head start in the springtime. This in combination with the plants ability to grow in a emerged or submerged form gives it a competitive advantage over other species.
Reference39643
Great Lakes RegionYes
Cost 
Location 

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Citation information: U.S. Geological Survey. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [1/13/2026].

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