Asteraceae

Mexican Oak Leaf

Shinnersia rivularis

Leaves shaped like an oak leaf on a fast-growing stem — an unusual outline for an aquarium plant. It grows very quickly and prefers water on the cool side.
Light
medium
Difficulty
medium
Height
10 – 30 cm (3.9 – 12 in)
Temperature
4 – 32 °C (39 – 90 °F)
Native rangeRange on the map
  • Mexico Northeast
  • Texas

Tank conditions

Leaf colour
green, white markings
Plant type
stem plant
Growth rate
very fast
CO₂ demand
medium
Tolerates light
low – high
pH
5 – 8
Carbonate hardness
2 – 21 °dKH
General hardness
0 – 30 °dGH
Placement
background
Propagation
cuttings
Grows emersed
yes

Care and keeping

Appearance

Lobed leaves in pairs along an upright stem 10–30 cm tall, light green; there is also a form with white veins. Single stems look leggy — the plant is meant to be grown in a group.

Keeping

Moderate demands and very fast growth: it reaches the surface quickly and is simply pinched back, with the tops replanted. Medium light is enough and carbon dioxide helps. Warm water is what it likes least, so it suits a room-temperature tank better than a tropical one.

Placement

The back of the tank, several stems together. Its speed makes it useful in a new tank, where it takes up nutrients before algae can.

Propagation

By cuttings: pinch off the tops and plant them back.

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: Shinnersia rivularis 'Weiß-Grün', Shinnersia rivularis ’Weiss-Grün’, Shinnersia rivularis Weiss Gruen, Shinnersia rivularis Weiss Gruen Topf

Scientific and other names, conservation status

Other scientific names
Trichocoronis rivularis
Shinnersia rivularis
(A.Gray) R.M.King & H.Rob.