Acmella repens

Aquarium suitability: yes
Usage: Background, Midground
Difficulty: medium
Growth: medium
Range and localities: 

North, Central and South America: southeastern USA (Texas to North Carolina) to Paraguay

Width: 4 - 5 cm

Availability [?]: 
  • rarely or not available commercially
  • rarely or not available from other aquarists

  • Anthemis repens Walter
  • Acmella oppositifolia var. repens (Walter) R. K. Jansen
  • Spilanthes americana var. repens (Walter) A. H. Moore

Habit, plant type:

  • stem
Botanical name [?]: Acmélla répens (Walter) Rich. ex Pers.

Major group (unranked): Seed plants: Flowering plants (Angiosperms)
Order: Asterales
Family: Asteraceae
Genus: Acmella


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.

- To be continued -

References and further reading:
  1. Entry Acmella repens in the APC Plantfinder (accessed 04. November 2012)
  2. Entry Acmella repens in Flora of North America (Online version, (accessed 02 February 2013)
  3. Kramer, Hans-Georg (2013): Flora Aquatica: Acmella repens. - Aquaristik Fachmagazin No. 233 October / November 2013: 94.
Light medium to high 
Temperature tolerance 18 to 30 °C
Nitrate (NO3-) 10 to 50 mg/l
Phosphate (PO43-) 0.1 to 3 mg/l
Potassium (K+) 5 to 30 mg/l
Iron (Fe) 0.01 to 0.5 mg/l

Growth: medium

Propagation: Cuttings

Can grow emersed?: yes

Suited for outdoor cultivation / ponds: unknown

Winter hardiness: unknown

References and further reading:
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Wasserpflanzen sind ein fester Bestandteil der meisten Aquarien. Beim Aquascaping, dem Naturaquarium, Biotop-Aquarium oder dem Gesellschaftsaquarium sind Wasserpflanzen nicht nur für die Wasserqualität entscheidend, sondern sorgen auch stets für eine optische Aufwertung des Aquariums.