Physematium obtusum

Physematium obtusum
Secure
Secure (NatureServe)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Embryophytes
Clade: Tracheophytes
Division: Polypodiophyta
Class: Polypodiopsida
Order: Polypodiales
Suborder: Aspleniineae
Family: Woodsiaceae
Genus: Physematium
Species:
P. obtusum
Binomial name
Physematium obtusum
(Spreng.) Torr.

Physematium obtusum, the bluntlobe cliff fern,[2] is a common rock fern of Appalachia and eastern North America. It prefers a calcareous substrate, but also grows in neutral soils. It typically grows on cliffs, balds, ledges, ridges, talus and rocky slopes.[3]

This fern is often confused with various ferns of the genus Cystopteris but is distinguished by its hairy nature.

References

  1. ↑ NatureServe (November 1, 2024). "Woodsia obtusa". NatureServe Explorer. Arlington, Virginia. Retrieved November 17, 2024.
  2. ↑ NRCS. "Woodsia obtusa". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 7 August 2015.
  3. ↑ "Woodsia obtusa (blunt-lobed cliff fern): Go Botany". gobotany.nativeplanttrust.org. Retrieved 2026-07-13.

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  1. ↑ Cite error: The named reference :0 was invoked but never defined (see the help page).