Dryopteris cristata

Tracheophyta PteropsidaDryopteridaceaeDryopterisDryopteris cristata

Ecology

This deciduous fern grows in mildly acidic `floating` fens that develop within or from more base-rich fens. It is characteristic of Sphagnum lawns, where it can tolerate the shade of invading Phragmites, and Salix and Betula scrub. It can persist in fen carr. Lowland.

Status

Native

World Distribution

Eurosiberian Temperate element, with a continental distribution in W. Europe; also in N. America.

Broad Habitats

Fen, marsh and swamp (not wooded)

Light (Ellenberg): 6

Moisture (Ellenberg): 9

Reaction (Ellenberg): 4

Nitrogen (Ellenberg): 4

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.6

July Mean Temperature (Celsius): 15.9

Annual Precipitation (mm): 659

Height (cm): 60

Perennation - primary

Perennial

Life Form - primary

Hemicryptophyte

Woodiness

Herbaceous

Clonality - primary

Little or no vegetative spread

Count of 10km squares in Great Britain: 31

Count of 10km squares in Ireland: 0

Count of 10km squares in the Channel Isles: 0

Atlas Change Index: -0.68

JNCC Designations

NHMSYS0000458186

Atlas text references

Atlas (12a)
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.
Wigginton MJ
1999.  British Red Data Books. 1. Vascular plants, edn 3.