Trident java fern

Microsorum pteropus 'Trident'

Also known as Leptochilus pteropus 'Trident', Trident Java fern

FreshwaterBrackishRhizomeRhizome divisionPlantlets

Care at a glance

Light
Low light
CO2
No CO₂ needed
Growth rate
Slow
Placement
Epiphyte
Type
Rhizome
Temperature
64–82°F (18–28°C)
pH
5.0–7.5
Hardness
2–15 dGH
Max height
9.8 in (25 cm)
Spread
5.9 in (15 cm)
Nutrient uptake
Water column
Growth region
Submersed or emersed
Difficulty
Beginner
Origin
Sarawak, Borneo (cultivated trade form)
Family
Polypodiaceae

Overview

Attach the rhizome to wood or rock with thread or gel glue and keep it above substrate, since burying the rhizome rots it. The finely divided leaves grow faster than most Java fern forms and stay relatively compact at around 15 to 25 cm, so it suits the midground and bushy hardscape planting. It wants only low light and no CO2, feeds from the water column, and throws plantlets generously, so it is one of the quicker ferns to fill in and propagate.

In the wild

A Java fern form thought to originate from Sarawak on Borneo, where the parent species grows attached to rocks and roots along forest streams and riverbanks. Like all Java ferns it grows both submersed and emersed where water levels shift, never rooting into the substrate. In the trade it is propagated as a stable cultivar rather than collected from the wild.

Good to know

Botanically Microsorum pteropus (Polypodiaceae, syn. Leptochilus pteropus), the Trident form has deeply lobed, feathery leaves with roughly two to five narrow finger-like lobes on each side of the frond. It grows from a creeping rhizome and propagates freely through adventitious plantlets on its leaves plus rhizome division. The lobed leaf shape is what gives it the forked, trident look and it is stable in cultivation.

Did you know

Trident grows and multiplies faster than almost any other Java fern variety and pumps out plantlets so readily that a single mother plant can carpet a piece of driftwood in a season, which is why it spread quickly through the hobby despite being a relatively recent find.

Appears in

Low-light plants · No-CO2 plants · Epiphytes · Beginner plants

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