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
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms={{Treatment/ID/Basionym
|name=Pinus mertensiana
|authority=Bongard
|rank=species
|publication_title=Mém. Acad. Imp. Sci. St. Pétersbourg, Sér.
|publication_place=6., Sci. Math. 2: 163. 1832
}}
|synonyms={{Treatment/ID/Synonym
|name=Abies hookeriana
|authority=A.Murray bis
|rank=species
}} {{Treatment/ID/Synonym
|name=Abies pattoniana
|authority=A.Murray bis
|rank=species
}} {{Treatment/ID/Synonym
|name=Hesperopeuce mertensiana
|authority=(Bongard) Rydberg
|rank=species
}} {{Treatment/ID/Synonym
|name=Hesperopeuce pattoniana
|authority=(A.Murray bis) Lemmon
|rank=species
}} {{Treatment/ID/Synonym
|name=Picea (tsuga)
|authority=hookeriana (A.Murray bis) Bertrand
|rank=species
}} {{Treatment/ID/Synonym
|name=Pinus hookeriana
|authority=(A.Murray bis) McNab
|rank=species
}} {{Treatment/ID/Synonym
|name=Pinus pattoniana
|authority=(A.Murray bis) Parlatore
|rank=species
}} {{Treatment/ID/Synonym
|name=Tsuga crassifolia
|authority=Flous
|rank=species
}} {{Treatment/ID/Synonym
|name=Tsuga hookeriana
|authority=(A.Murray bis) Carrière
|rank=species
}} {{Treatment/ID/Synonym
|name=Tsuga pattoniana var. hookeriana
|authority=(A.Murray bis) Lemmon
|rank=variety
}} {{Treatment/ID/Synonym
|name=Tsuga-picea hookeriana
|authority=
|rank=species
}}
|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 <i>Tsuga mertensiana</i> 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 <i>Picea</i> and <i>Tsuga</i>. 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=
}}<!--

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-->{{#Taxon:
name=Tsuga mertensiana
|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=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V2/V2_23.xml
|genus=Tsuga
|species=Tsuga mertensiana
}}<!--

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