⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2609904, with some changes.
This name is a synonym of Tsuga mertensiana subsp. grandicona .
The record derives from WCSP which reports it as a synonym (record 381831
) with original publication details: Edinburgh New Philos. J. II, 1: 289 1855.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:261547-1
.