Asplenium ruta-muraria

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Wall rue
Asplenium ruta muraria2.jpg

Secure (NatureServe)
Scientific classification e
Kingdom: Plantae
Division: Pteridophyta
Class: Polypodiopsida/Pteridopsida
Order: Polypodiales
Family: Aspleniaceae
Genus: Asplenium
Species: A. ruta-muraria
Binomial name
Asplenium ruta-muraria

Asplenium ruta-muraria is a species of fern commonly known as wall-rue.[1] In Germany, it is known as Mauerraute or Mauerstreifenfarn. It is a very small epipetric species, growing exclusively on limestone and other calcareous rocks.

Sori of A. ruta-muraria

Distribution and habitat[edit]

Asplenium ruta-muraria is native to Europe, east Asia and eastern North America.[2] In North America, its range extends from western New England southwest along the Appalachian Mountains to Alabama and Tennessee. It is also found in the Ozarks and in southern Indiana and Ohio, with outlying occurrences in Michigan, Ontario, Quebec, and Clinton County, Iowa.[3]

In Europe, it commonly invades masonry and is a common species, while in the United States, it is more difficult to find, favoring pockets in very well-weathered and rather dry limestone outcrops.


  1. ^ English Names for Korean Native Plants (PDF). Pocheon: Korea National Arboretum. 2015. p. 365. ISBN 978-89-97450-98-5. Archived from the original (PDF) on 25 May 2017. Retrieved 25 January 2017 – via Korea Forest Service. 
  2. ^ Wagner, Moran & Werth 1993.
  3. ^ Kartesz 2014.


  • Kartesz, John T. (2014). "Asplenium". Biota of North America Program. 
  • Wagner, Warren H., Jr.; Moran, Robbin C.; Werth, Charles R. (1993). "Asplenium ruta-muraria". In Flora of North America Editorial Committee. Flora of North America North of Mexico. 2: Pteridophytes and Gymnosperms. New York and Oxford: Oxford University Press. Retrieved 2016-03-21.