Elkhorn Fern
Scientific Name: Platycerium bifurcatum
Category: plant
Brief Description
An epiphytic fern that grows on the trunks and branches of trees, characterized by large, strappy, lobed fronds that resemble deer antlers, and prominent nest fronds.
Characteristics
Features two types of fronds: basal/nest fronds that overlap and cling to the host tree, capturing falling debris and water, and fertile, pendulous, green fronds that divide into lobes resembling elk or stag horns.
Habitat
Rainforests, open forests, and woodland areas; also commonly cultivated on trees in urban parks and gardens in tropical and subtropical regions.
When to Find It
Visible year-round; the nest fronds may become brown and papery as they age, while new green fertile fronds continue to grow.
Conservation Status
Least Concern
Ecological Role
Provides habitat for various insects, spiders, and occasionally small reptiles or frogs; helps in nutrient cycling by trapping organic matter in the canopy.
Easily Confused With
Staghorn Fern (Platycerium superbum) has a single growing point and larger, more massive nest fronds, whereas Elkhorn Ferns often form colonies with multiple 'eyes' or growing points.
Observation Tips
Look up into the forks and along the sturdy branches of large trees in parks, gardens, and forested areas around Cairns.
Interesting Facts
Elkhorn ferns do not extract nutrients from the host tree; they are true epiphytes, relying on their nest fronds to catch falling leaves and rainwater which decompose into nutrients.