Floating Water Fern

Floating Water Fern

Salvinia natans
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Conservation Status: LC

The Floating Water Fern is classified as LC under the IUCN Red List of Threatened Species.

Quick Facts & Botanical Stats

Plant Category
Ferns & Lycophytes
Growth Habit
Aquatic Floating Fern
Primary Habitat
Still freshwater lakes, slow rivers, and coastal lagoons.
Average Lifespan
Annual
Water Requirement
High
Maximum Height
1 - 2 cm (floating)
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Native Region
Europe, Asia, and Africa

Species Overview

Floating Water Fern is a free-floating aquatic fern with water-repellent eggbeater-shaped hairs.

Physical Appearance & Anatomy

Paired oval floating green leaves covered in tiny water-repellent hair clusters.

Habitat & Growth Behavior

Forms dense floating mats across calm water surfaces.

Ecological Role & Symbioses

Provides shelter for fish fry and aquatic invertebrates.

Reproduction, Lifecycle & Propagation

Produces submerged spore-containing capsules near modified root-like leaves.

Conservation Status & Environmental Threats

Locally threatened by water pollution in parts of Europe.

Interesting Fun Facts

  • Its leaf hairs trap a pocket of air so effectively that the plant cannot be submerged.
  • It has no true roots; its third submerged leaf functions as a root to absorb nutrients.

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