Bracken fern leaves / fronds with spores on the underside – close up.

Low resolution sample – 4K version available

A very close up shot of green Bracken (Pteridium aquilinum), also known as brake fern or bracken fern, fronds. On the underside of the leaves are its brown spores in clusters known as sori, which are all neatly lined up. 4K locked tripod shot. (Ref. Leaf 80)

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