Asteraceae

Creeping Spotflower

Acmella repens

A small marsh plant from the American south with an upright, neatly symmetrical habit. New to the hobby, and easy — a compact stand-in for the far bigger plants it resembles.
Light
medium–high
Difficulty
medium
Temperature
18 – 30 °C (64 – 86 °F)
Native rangeRange on the map
  • Alabama
  • Arkansas
  • Bolivia
  • Colombia
  • Costa Rica
  • Cuba
  • Ecuador
  • El Salvador
  • Florida
  • Georgia
  • Guatemala
  • Honduras
  • Louisiana
  • Mexico Central
  • Mexico Gulf
  • Mexico Northeast
  • Mexico Northwest
  • Mexico Southeast
  • Mexico Southwest
  • Mississippi
  • Missouri
  • Nicaragua
  • North Carolina
  • Oklahoma
  • Panamá
  • Paraguay
  • Peru
  • South Carolina
  • Tennessee
  • Texas
  • Venezuela

Tank conditions

Leaf colour
green
Plant type
stem plant
Growth rate
medium
Tolerates light
medium – high
General hardness
0 – 30 °dGH
Placement
background, midground
Propagation
cuttings
Grows emersed
yes

Care and keeping

Appearance

Paired green leaves on a straight stem, evenly spaced, so the plant looks tidy from every side. Above water it flowers in yellow — it belongs to the daisy family, and a close relative is grown as a herb.

Keeping

Moderate demands, no harder than the usual stem plants: medium to strong light, a nutritious substrate, carbon dioxide optional. Growth under water is unhurried, which makes it easier to shape than the vigorous plants it looks like. Note that shrimp are fond of the soft above-water leaves and will strip a freshly planted specimen.

Placement

The middle or back of the tank, in a group; its regular shape suits the ordered rows of a Dutch-style layout, and its modest size fits tanks where bigger stem plants would take over.

Propagation

By cuttings: cut the top and replant it.

Fish and this plant

Matching water does not mean the fish will leave the plant alone.

Cultivars

The same plant with a different look: light, water and care are shared with the species.

Other varieties: Acmella repens in Vitro

Scientific and other names, conservation status

Other scientific names
Anthemis repens Walter, Acmella oppositifolia var. repens (Walter) R. K. Jansen, Spilanthes americana var. repens (Walter) A. H. Moore, Acmella nuttaliana, Acmella occidentalis, Acmella oppositifolia oppositifolia, Acmella oppositifolia repens, Acmella repens, Acmella repens beccabunga, Acmella repens repens, Anthemis repens, Anthemis trinervia, Ceratocephala beccabunga, Ceratocephala repens, Ceratocephalus beccabuna, Ceratocephalus beccabunga, Ceratocephalus repens, Ceratocephalus subhirsutus, Spilanthes americana ciliatifolia, Spilanthes americana lanitecta, Spilanthes americana longiinternodiata, Spilanthes americana parvula, Spilanthes americana repens, Spilanthes beccabunga, Spilanthes beccabunga beccabunga, Spilanthes beccabunga parvula, Spilanthes ciliata diffusa, Spilanthes cocuyensis, Spilanthes diffusa, Spilanthes diffusa diffusa, Spilanthes disciformis disciformis, Spilanthes disciformis phaneractis, Spilanthes lateraliflora, Spilanthes lehmanniana, Spilanthes nuttallii, Spilanthes orizabaensis, Spilanthes phaneractis, Spilanthes repens, Spilanthes subhirsuta
Acmella repens
(Walter) Rich. ex Pers.