View source for Tsuga mertensiana

{{Treatment/ID
|accepted_name=Tsuga mertensiana
|accepted_authority=(Bongard) Carrière
|publications={{Treatment/Publication
|title=Traité Gén. Conif., ed. 2
|place=250. 1867
|year=1867
}}
|common_names=Mountain hemlock;pruche de Patton
|basionyms={{Treatment/ID/Synonym
|name=Pinus mertensiana
|authority=Bongard
}}
|synonyms={{Treatment/ID/Synonym
|name=Abies hookeriana
|authority=A.Murray bis
}}{{Treatment/ID/Synonym
|name=Abies pattoniana
|authority=A.Murray bis
}}{{Treatment/ID/Synonym
|name=Hesperopeuce mertensiana
|authority=(Bongard) Rydberg
}}{{Treatment/ID/Synonym
|name=Hesperopeuce pattoniana
|authority=(A.Murray bis) Lemmon
}}{{Treatment/ID/Synonym
|name=Picea (tsuga)
|authority=hookeriana (A.Murray bis) Bertrand
}}{{Treatment/ID/Synonym
|name=Pinus hookeriana
|authority=(A.Murray bis) McNab
}}{{Treatment/ID/Synonym
|name=Pinus pattoniana
|authority=(A.Murray bis) Parlatore
}}{{Treatment/ID/Synonym
|name=Tsuga crassifolia
|authority=Flous
}}{{Treatment/ID/Synonym
|name=Tsuga hookeriana
|authority=(A.Murray bis) Carrière
}}{{Treatment/ID/Synonym
|name=Tsuga pattoniana var. hookeriana
|authority=(A.Murray bis) Lemmon
}}{{Treatment/ID/Synonym
|name=Tsuga-picea hookeriana
|authority=unknown
}}
|hierarchy=Pinaceae;Tsuga;Tsuga mertensiana
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Pinaceae]]</div><div class="higher-taxon"><small>genus</small>[[Tsuga]]</div><div class="higher-taxon"><small>species</small>[[Tsuga mertensiana]]</div></div>
|volume=Volume 2
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Trees </b>to 40m; trunk to 1.5m diam.; crown conic. <b>Bark</b> charcoal gray to reddish brown, scaly and deeply fissured. <b>Twigs</b> yellow-brown, glabrous to densely pubescent. <b>Buds</b> oblong, 3–4mm. <b>Leaves</b> 10–25(–30)mm, mostly spreading in all directions from twigs, curved toward twig apex, thickened centrally along midline, somewhat rounded or 4-angled in cross section, both surfaces glaucous, with ±inconspicuous stomatal bands; margins entire. <b>Seed</b> cones oblong-cylindric, 3–6 × 1.5–3cm; scales broadly fan-shaped, 8–15 × 8–15mm, apex rounded to pointed. <b>2n</b> =24.</span><!--

-->{{Treatment/Body
|habitat=Coastal and montane forests to alpine slopes (where it occurs in krummholz form)
|elevation=0–2400m
|distribution=B.C.;Alaska;Calif.;Idaho;Mont.;Nev.;Oreg.;Wash.
|discussion=<p>The wood of Tsuga mertensiana is somewhat inferior to that of western hemlock both for building purposes and as pulp. This is a very handsome tree with its branches densely clothed with pale, spreading leaves and is adaptable to a wide variety of climatic conditions.</p><!--
--><p>M.Van Campo-Duplan and H.Gaussen (1948) postulated that this taxon originated by hybridization between Picea and Tsuga. Although this is unlikely, some characteristics such as leaf arrangement and shape, phenolic chemistry, and pollen grain structure lend some support for this hypothesis.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Tsuga mertensiana
|author=
|authority=(Bongard) Carrière
|rank=species
|parent rank=genus
|synonyms=Abies hookeriana;Abies pattoniana;Hesperopeuce mertensiana;Hesperopeuce pattoniana;Picea (tsuga);Pinus hookeriana;Pinus pattoniana;Tsuga crassifolia;Tsuga hookeriana;Tsuga pattoniana var. hookeriana;Tsuga-picea hookeriana
|basionyms=Pinus mertensiana
|family=Pinaceae
|habitat=Coastal and montane forests to alpine slopes (where it occurs in krummholz form)
|elevation=0–2400m
|distribution=B.C.;Alaska;Calif.;Idaho;Mont.;Nev.;Oreg.;Wash.
|reference=None
|publication title=Traité Gén. Conif., ed. 2
|publication year=1867
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V2/V2_23.xml
|genus=Tsuga
|species=Tsuga mertensiana
}}<!--

-->[[Category:Treatment]][[Category:Tsuga]]