There are about 12,000 fern species, and ferns are amongst the most ancient plants.
Fern leaves are actually called fronds, and staghorn ferns have two types. The first, and most prominent, is the “antler” frond - these are the large, bifurcated leaves that shoot out of the centre of the plant.
The second type of staghorn fern frond is called the shield frond. These are the round, hard plate-like leaves that surround the base of the plant. Their function is to protect the plant roots, and take up water and nutrients.