This name is a synonym of Ledum palustre subsp. decumbens (Aiton) Hultén.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 12303742) with original publication details: Ann. Bot. Fenn. 27(2): 203 1990.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:1020640-2.
This name was in version 1 of The Plant List, record tro-12303742.