Asian Water Fern

(Bolbitis heteroclita)

Asian Water Fern (Bolbitis heteroclita)

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Estimated Native Range
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Summary

Bolbitis heteroclita, commonly known as Asian Water Fern, is an evergreen fern native to the humid, shaded stream banks and marshy areas in tropical and subtropical regions of Asia, extending to the Caroline Islands. It typically grows to a height of 0.5-1 feet (0.2-0.3 meters) and can spread widely, with a width of 6-12 feet (1.8-3.7 meters). The fern has delicate, pinnate fronds that resemble those of poison ivy but are harmless. The fronds are bright green and can add a lush, tropical feel to a garden setting or aquarium.

Asian Water Fern is valued for its adaptability to aquatic environments, making it a popular choice for garden ponds and freshwater aquariums. It thrives in full shade and requires high humidity or aquatic conditions, with soils that provide slow or standing drainage. While it can be challenging to grow fully submerged, Bolbitis heteroclita is easier to cultivate as a terrestrial or emersed plant in ponds. It is often used as a decorative element due to its attractive foliage and ease of maintenance when grown in suitable conditions. Gardeners should be aware that this species may be sensitive to changes in water quality and temperature.CC BY-SA 4.0

Plant Description

  • Plant Type: Fern
  • Height: 0.5-1 feet
  • Width: 6-12 feet
  • Growth Rate: Slow
  • Flower Color: N/A
  • Flowering Season: Non-Flowering
  • Leaf Retention: Evergreen

Growth Requirements

  • Sun: Full Shade
  • Water: High, Aquatic
  • Drainage: Slow, Standing

Common Uses

Deer Resistant, Low Maintenance, Potted Plant, Water Garden

Natural Habitat

Humid, shaded stream banks and marshy areas in tropical and subtropical Asia

Other Names

Common Names: El Niño Fern, Trillingbräken, 尾葉實蕨;大實蕨

Scientific Names: , Bolbitis heteroclita, Leptochilus cuspidatus, Leptochilus heteroclitus, Bolbitis cuspidata, Acrostichum flagelliferum, Bolbitis scandens, Bolbitis inconstans, Campium heteroclitum, Gymnopteris inconstans

GBIF Accepted Name: Bolbitis heteroclita (C.Presl) Ching