Dryopteris shibpedis is a species of fern native Japan that was declared extinct in 2007, that has since been rediscovered in the Tsukuba Botanical Garden. Despite rediscovery, D. shibipedis is still ranked as extinct in the wild.
Originating from the family Dryopteridaceae, or wood ferns, the Dryopteris shibipedis is thought to be a 'hybridization between a sexual tetraploid providing a diploid egg and an apogamous diploid providing a diploid sperm.' This meaning, the fern itself is considered a ...
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