Pteris carsei

Pteris carsei is a species of fern native to New Zealand, including the Kermadec Islands. Originally considered a subtype of Pteris comans, the species was first formally described by Patrick Brownsey and John E. Braggins in 2020.

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Pteris carsei is a medium-large fern, with fronds extending as far as 150 cm (59 in) away from the rhizome. It can often be identified by its erect rhizome and laminae pattern.

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Pteris carsei was first suggested to be a separate species from Pteris comans in John E. Braggins' 1975 thesis Studies on the New Zealand, and some related, species of Pteris L.. Specimens of P. carsei had been collected as early as 1832. In 2017, genetic differences were discovered between Australian specimens of P. comans and P. carsei, which prompted a review of Australasian Pteris species. Pteris carsei forms a clade with Pteris saxatilis, Pteris macilenta and more distantly Pteris epaleata.