The fronds are 15 -- 30 cm long and it has an erect stalk between 20 and 50 cm high .
Sticherus cunninghamii , or umbrella fern , is a New Zealand native fern characterised by its drooping fronds that resemble an umbrella .
The fronds are 15 -- 30 cm long and Sticherus cunninghamii has an erect stalk between 20 and 50 cm high .
Sticherus cunninghamii , or umbrella fern , is a New Zealand native fern characterised by its drooping fronds that resemble an umbrella .