Button fern, scientifically known as Pellaea rotundifolia, is a perennial fern species that belongs to the family Pteridaceae. Native to New Zealand, Australia, and other Pacific islands, it is characterized by its small, rounded leaflets and compact growth habit, giving rise to its common name "button fern."
This fern typically grows in dense clumps and has a low, creeping habit. The fronds, which arise in a rosette pattern, are pinnately compound and oblong in shape. They are made up of numerous rounded leaflets, resembling buttons, which are approximately 1-2 centimeters in diameter. The leaflets vary in color, ranging from deep green to gray-green, with a glossy texture.
Button ferns thrive in a moist and humid environment, preferring indirect or filtered sunlight rather than direct exposure. They are well-suited for indoor cultivation, making them a popular choice as houseplants or in terrariums and hanging baskets. When provided with the right conditions, they can grow up to 30 centimeters in height and width.
In terms of care, button ferns require regular watering to maintain consistently moist soil. They also benefit from occasional misting to increase humidity levels. These ferns prefer temperatures between 60-75°F (15-24°C) and are sensitive to extreme cold or heat. Pruning and removal of dead fronds are recommended to maintain their appearance and promote healthy growth.
Overall, button ferns are prized for their compact size, attractive foliage, and ability to thrive in indoor settings. They are valued both for their ornamental qualities and their relatively easy care requirements, making them a popular choice for fern enthusiasts and plant lovers alike.
The word "button fern" derives from the combination of two elements: "button" and "fern".
The term "button" comes from the Old English word "botm", meaning "a bud or knob". It later evolved to "button", referring to a small, generally round object.
"Fern" originates from the Old English word "ferne" or "fearn", which can be traced back to the Proto-Germanic word "farn", meaning "fern" or "feather". The term "fern" specifically denotes a group of non-flowering vascular plants that reproduce via spores.
Therefore, the word "button fern" combines the description of the fern's small, round structures resembling buttons or knobs, along with indicating its membership in the fern plant family.