Asplenium scolopendrium
This evergreen fern is a fresh green with undivided fronds which form clumps. Dark brown spore cases are borne in rows on the underside of the fronds. Frond length 60cm.
They inhabit damp and shady habitats, like woodland and river banks, also rocks and walls. Common and widespread.
Photographs of Hart’s-tongue Fern (Asplenium scolopendrium), taken August 2011 on coastal pathway, Saundersfoot, Wales. © Pete Hillman 2011. Camera used Panasonic Lumix DMC-FZ38.
Nature Journeys 
I have seen some of the ferns you have featured, like this one and the Maidenhair, being sold in nurseries in the indoor plant section.
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Yes, although these were photographed in the wild, like some plants, you can buy them to plant in your own garden.
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