Asplenium ruta-muraria

Asplenium ruta-muraria is a species of fern commonly known as wall-rue[1] (but which, as a fern, is not by any means closely related to common rue). In Germany, it is known as Mauerraute or Mauerstreifenfarn. It is a very small epipetric species, growing exclusively on limestone and other calcareous rocks. Its fronds are bluish-green and are heavily sub-divided, becoming up to 12cm in length.

Sori of A. ruta-muraria

Wall rue

Secure  (NatureServe)
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Class: Polypodiopsida
Order: Polypodiales
Suborder: Aspleniineae
Family: Aspleniaceae
Genus: Asplenium
Species:
A. ruta-muraria
Binomial name
Asplenium ruta-muraria

Distribution and habitat

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, favouring pockets in very well-weathered and rather dry limestone outcrops.

Citations
  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.
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References
  • Kartesz, John T. (2014). "Asplenium". Biota of North America Program.CS1 maint: ref=harv (link)
  • Wagner, Warren H., Jr.; Moran, Robbin C.; Werth, Charles R. (1993). "Asplenium ruta-muraria". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico. 2: Pteridophytes and Gymnosperms. New York and Oxford: Oxford University Press. Retrieved 2016-03-21.CS1 maint: ref=harv (link)

Averis, Ben (2013). Plants and habitats. ISBN 9780957608108.


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