Pseudorchis albida

Tracheophyta MagnoliopsidaOrchidaceaePseudorchisPseudorchis albida


A tuberous perennial herb of well-drained hill pastures, streamsides, mountain grasslands and cliff ledges on a range of dry, acidic or calcareous soils; also on recently burnt moorland, but not persisting when Calluna regrows. Rarely, it occurs in acidic Quercus woodland. 0-550 m (Ben Chaisteil, Main Argyll).



World Distribution

European Boreal-montane element; also in N. America.

© K.J. Walker, BSBI

Broad Habitats

Light (Ellenberg): 8

Moisture (Ellenberg): 5

Reaction (Ellenberg): 6

Nitrogen (Ellenberg): 2

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 2.6

July Mean Temperature (Celsius): 13

Annual Precipitation (mm): 1534

Height (cm): 20

Perennation - primary


Life Form - primary

Non-bulbous geophyte (rhizome, corm or tuber)



Clonality - primary

Little or no vegetative spread

Count of 10km squares in Great Britain: 385

Count of 10km squares in Ireland: 110

Count of 10km squares in the Channel Isles: 0

Atlas Change Index: -0.88

JNCC Designations


Atlas text references

Atlas (337a)
Allan B, Woods P
1993.  Wild orchids of Scotland.
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.
Meusel H, Jäger E, Weinert E
1965.  Vergleichende Chorologie der zentraleuropäischen Flora. Volume 1. 2 vols.