Asplenium viride

Tracheophyta PteropsidaAspleniaceaeAspleniumAsplenium viride


A. viride is an evergreen fern of moist, sheltered crevices in basic rocks, and very rarely also on mortared walls. It is occasionally a colonist of old metal mine workings. From sea level on the coasts of W. Britain and Ireland to 975 m on Ben Lawers (Mid Perth).



World Distribution

Circumpolar Boreal-montane element, with a disjunct distribution.

© Mahanova, Alla

Broad Habitats

Light (Ellenberg): 4

Moisture (Ellenberg): 5

Reaction (Ellenberg): 8

Nitrogen (Ellenberg): 3

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 2

July Mean Temperature (Celsius): 12.8

Annual Precipitation (mm): 1701

Height (cm): 20

Perennation - primary


Life Form - primary




Clonality - primary

Little or no vegetative spread

Count of 10km squares in Great Britain: 435

Count of 10km squares in Ireland: 43

Count of 10km squares in the Channel Isles: 0

Atlas Change Index: -0.21

Weighted Changed Factor: -24

Weighted Change Factor Confidence (90%)


JNCC Designations


Atlas text references

Atlas (8c)
Hultén E, Fries M
1986.  Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
Jalas & Suominen (1972)
Bangerter EB, Cannon JFM, Jermy AC
1978.  Ferns and their allies. The Island of Mull: a survey of its flora and environment. :12.1-12.7.
Meusel H, Jäger E, Weinert E
1965.  Vergleichende Chorologie der zentraleuropäischen Flora. Volume 1. 2 vols.
Rumsey FJ
1997.  Asplenium viride Hudson (Aspleniaceae) in Greater London. Watsonia. 21:376-378.