Range and localities [?]: North, Central and South America: southeastern USA (Texas to North Carolina) to Paraguay
Acmella repens is a plant from the Asteraceae family growing in the southeast of the USA, from Texas to North Carolina, as well as in Central and South America, from Mexico to Paraguay1. This relatively small plant with its yellow flowers occurs in disturbed, wet or drying-out locations2. It belongs to the same genus as the medical/spice plant paracress or jambú (Acmella oleracea).
Only a short time ago, aquaristis from the USA have discovered that Acmella repens, which they collected in Texas, can be cultivated submersed. Outside the USA it is hardly known as aquarium plant yet.
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It appears that Acmella repens is overall not difficult to cultivate in aquariums and is comparable to many other stem plants.
As an emersed plant, A. repens is apparently very vigorous and grateful for nutrient-rich substrate. In an aquarium heavily stocked with Amano shrimp (Caridina multidentata) at the company Aquasabi, the leaves of emersed A. repens were eaten by the shrimp right after the plant had been placed in the aquarium.
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References and further reading:We do not yet know of any aquascaping examples with Acmella repens. With its upright, symmetrical habit, the plant could certainly be used well for plant streets in Dutch planted aquariums. It looks like a miniature version of Gymnocoronis spilanthoides and could be an alternative in smaller aquariums to that stem plant, which grows huge. Because it grows only moderately fast, it is also much easier to handle than the vigorous G. spilanthoides.
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