Polystichum lonchitis

Tracheophyta PteropsidaDryopteridaceaePolystichumPolystichum lonchitis

Ecology

This evergreen species is a calcicole, growing in well-drained, cool and moist positions at the base of cliffs, on rocky ledges, and particularly in stabilised boulder-scree. It also grows in deep grikes of limestone pavements. P. lonchitis is a poor competitor, but is long-lived once established. From 180 m at Inchnadamph, W. Sutherland, but generally above 600 m and reaching 1150 m in the Breadalbanes (Mid Perth).

Status

Native

World Distribution

Circumpolar Boreal-montane element, with a disjunct distribution.

© K.J. Walker, BSBI

Broad Habitats

Light (Ellenberg): 6

Moisture (Ellenberg): 5

Reaction (Ellenberg): 7

Nitrogen (Ellenberg): 3

0

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 1.4

July Mean Temperature (Celsius): 12.1

Annual Precipitation (mm): 1857

Life form information

Height (cm): 30

Perennation - primary

Perennial

Life Form - primary

Hemicryptophyte

Woodiness

Herbaceous

Clonality - primary

Little or no vegetative spread

Count of 10km squares in Great Britain: 181

Count of 10km squares in Ireland: 20

Count of 10km squares in the Channel Isles: 0

Atlas Change Index: -0.76

Distribution information

JNCC Designations

NBNSYS0000002077

PLANTATT - Attributes of British and Irish plants. (.zip 1455KB) This dataset was compiled and published in 2004, and last updated in November 2008. Download includes an Excel spreadsheet of the attributes, and a PDF explaining the background and nomenclature. Note that the PDF version is the booklet as published, whereas the Excel spreadsheet incorporates subsequent corrections. A hardcopy can be purchased from the Centre for Ecology and Hydrology.

Atlas text references

Atlas (13c)
Curtis TGF, McGough HN
1988.  The Irish Red Data Book. 1. Vascular Plants.
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.
Page CN
1997.  The ferns of Britain and Ireland, edn 2.