| button fern n. A New Zealand fern (Pellaea rotundifolia) cultivated as a houseplant for its arching or trailing leaves with round, dark green, buttonlike leaflets. |
| button fern | |
noun | |
| 1. | fern of New Zealand and Australia having trailing fronds with dark green buttonlike leaflets |
| 2. | Jamaican fern having round buttonlike bulbils |