| Part of single frond. Oxfordshire, late October |
 | Pinnae. Oxfordshire, late October |
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| Detail of pinnae. W Scotland (Main Argyll), early August |
 | Pinnules. Oxfordshire, late October |
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| Pinnules. W Scotland (Main Argyll), early August |
 | Pinnules. W Scotland (Main Argyll), early August |
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| Detail of pinnae. Oxfordshire, July |
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Very young plant. Oxfordshire, late October |
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| Immature fronds. Compare with Polystichum lonchitis. In limestone pavement, Cumbria, early July |
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Detail of immature frond. Compare with Polystichum lonchitis. In limestone pavement, Cumbria, early July |
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| Young plant. In limestone pavement, Yorkshire, late July |
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Yorkshire, late July |
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| In limestone pavement, Cumbria, early July |
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In limestone pavement, Cumbria, early July |
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| In limestone pavement, Cumbria, early July |
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In limestone pavement, Cumbria, early July |
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| In deep shade on the side of a ditch. Oxfordshire, late October |
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Oxfordshire, July |
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| City fern. Oxford, late July |
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W Scotland (Main Argyll), early August |
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