Checklist » Pinaceae » Tsuga heterophylla
Last updated 5/3/2020 by David Giblin.
Tsuga heterophylla (Raf.) Sarg.[FNA2, HC, HC2]
western hemlock

Publication: Silva. 12: 73, plate 605. 1898.

Origin: Native

selected vouchers: WTU

Notes: FNA2: "Tsuga × jeffreyi (Henry) Henry was described from southwestern British Columbia and western Washington as a hybrid between T . heterophylla and T . mertensiana . Hybridization is rare, if it occurs at all, and it is therefore of little consequence (R.J. Taylor 1972). At the upper elevational limits of its distribution and under stressful conditions, T . heterophylla tends to resemble T . mertensiana , e.g., leaves are less strictly 2-ranked and stomatal bands on the abaxial leaf surfaces are less conspicuous than at lower elevations."

References: (none)

Synonyms & Misapplied Names:
Abies heterophylla Raf.