Flora of the Southeastern United States
2022 Edition

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CYSTOPTERIDACEAE

Cystopteris laurentiana (Weatherby) Blasdell. Laurentian Fragile Fern. Hab: Calcareous cliffs and ledges. Dist: NL west to ON, south to MA, PA, n. IL, and e. IA.

Origin/Endemic status: Native

Syn: = C, FNA2, Il, K3, K4, NE, Pa; = Cystopteris ×laurentiana – Shmakov, Batkin, & Vaganov (2018); = Cystopteris fragilis var. laurentiana – F, G

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image of plant© Mathew Zappa, some rights reserved (CC BY), uploaded by Mathew Zappa source CC-BY