Walking Fern
(Asplenium rhizophyllum)

Walking Fern (Asplenium rhizophyllum) Other scientific names: Camptosorus rhizophyllus

French names: Doradille ambulante

Family: Spleenwort Family (Aspleniaceae)

Distinctive features: Leaves with a very long pointed end; grows on top of limestone boulders in moss. This is a very unique fern, unlike any other.

Similar species:
  •   Hart's Tongue Fern (Asplenium scolopendrium) - But there's really nothing else like Walking Fern.


Fronds: Evergreen;  Undivided;  Long and narrowing to a long slender point. New ferns grow from the tips of the leaves where they touch the ground.

Height: Low, spreading.

Habitat: On top moss-covered limestone boulders.

Native/Non-native: Native

Status: Rare

Notes: If you discover this fern in the wild, please leave it alone. It's quite rare.

Photographs: 105 photographs available, of which 18 are featured on this page. SCROLL DOWN FOR PHOTOGRAPHS.

Two Walking Fern leaves.They are long, tapering to a very long and narrow point.

Walking Fern leaves are evergreen, lasting through the winter.

Peeking out from under the snow in late December.

A few younger leaves.

More young ones.

A group of Walking Ferns can look somewhat "messy" and straggly.

The underside of a leaf, showing the lines of sori.

A closeup of a leaf. Walking Ferns can be difficult to photograph, due to their small size, and also that they like to grow in deep woods.

Here's a few photos of herbarium specimens. This photo and the next show the length of the leaves.

(Royal Botanical Gardens Herbarium, Burlington, Ontario)

Due to the rarity of this species, I have not pulled any up myself to photograph the roots!

(Royal Botanical Gardens Herbarium, Burlington, Ontario)

The roots.

(Royal Botanical Gardens Herbarium, Burlington, Ontario)

Sori on the underside of a leaf.p> (Royal Botanical Gardens Herbarium, Burlington, Ontario)

Back to the live ones... Here's the tip of a frond.

Closeup view of the tip. When this tip touches the group (actually the surface of the moss-covered rock upon which it is growing), it will grow into another plant.

Underside of a frond.

A nice clump of Walking Fern. They grow in clumps because of their tendency to grow new plants from the tips of the fronds.

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