Some ferns die down in the winter but this Male Fern (Dryopteris filix-mas) has kept its green fronds. Each frond is divided into pinnae (singular 'pinna' - Latin for 'feather') . . . .
. . . and each pinna is further divided into pinnules (little feathers) so the male fern is said to be 'doubly pinnate'.
Compare the singly pinnate Polypody fern below. We only have one Polypody at Filnore, but lots of male ferns.
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