Adiantum formosum

Giant Maidenhair Fern or Black Stem

Family:            Adiantaceae

Plant:              A fern up to 1m high, often growing in large colonies.

Fronds:           Dark green broadly triangular 60-100cm long. 3-4 pinnate with rounded pinna. Glabrous stems are long, shiny and dark brown or black.

Sori:                Elongated with 5-9 per lobe in depressions along the margins of the frond.

Rhizome:          Long, creeping, much-branched, deeply buried and covered with dark brown scales.

Habitat:           Coastal rainforest and wet sclerophyll forest - common in gullies and along creek banks.

Features:       Widely creeping rhizome. Large branched fronds. Sori arrangement.

Name:

Adiantum       From Greek = not too wet.

formosum      From Latin formosus = beautiful.

Search Criteria

 

Type

Fern

Trunk

No trunk

Fronds

Form

Compound

 

Length (Total)

Very Long

 

Other Features

-

Sori

Arrangement

Near margins

Rhizome

Type

Creeping, Underground

 

Other Features

Scaly

Habitat    

Rainforest, Wet sclerophyll forest