MONEY MONEY PLANT

The name of the fern above is Pokok Duit-duit or Money money plant.  Duit-duit (Pyrrosia nummularifolia) is a delightful little fern.  ‘Duit’ refers to coin shape of the leaf.   It is known as creeping button fern in English. ‘Duit’ refers to the coin shape of the leaf.  I wonder why this particular plant is not listed as an auspicious plant since it is called duit-duit or moneyit money in English.   
By the way, this plant is growing in my mum's garden and the host tree is the Mini Apple Tree.  Actually, the leaves of this fern should be round like that of a coin, hence the name duit-duit.  However, the leaves in my mum's plant are a bit longish.  Whatever fertiliser did she use?