The BioFiles - Bill Hubick

Blunt-lobed Woodsia (Woodsia obtusa)

Source: Wikipedia

Physematium obtusum

Secure  (NatureServe)[1]
Scientific classification Edit this classification
Kingdom: Plantae
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 may grow on rock faces or in scree.

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

References

[edit]
  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.