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Tsuga heterophylla, the western hemlock [2] or western hemlock-spruce, [3] is a species of hemlock native to the northwest coast of North America, with its northwestern limit on the Kenai Peninsula, Alaska, and its southeastern limit in northern Sonoma County, California. [4] [5] The Latin species name means 'variable leaves'. [6]
Tsuga (/ ˈ s uː ɡ ə /, [3] from Japanese 栂 (ツガ), the name of Tsuga sieboldii) is a genus of conifers in the subfamily Abietoideae of Pinaceae, the pine family.The English-language common name "hemlock" arose from a perceived similarity in the smell of its crushed foliage to that of the unrelated plant hemlock. [4]
Leaves greener, less glaucous above, paler below; cones indistinguishable from the type. At one time it was thought to be a hybrid with western hemlock, but there is no verified evidence for this. Tsuga mertensiana subsp. grandicona Farjon. California mountain hemlock; syn. T. hookeriana (A.Murray) Carrière, T. crassifolia Flous. Central ...
Carolina hemlock Pinaceae (pine family) 262 Tsuga chinensis: Chinese hemlock Pinaceae (pine family) Tsuga diversifolia: Northern Japanese hemlock Pinaceae (pine family) Tsuga dumosa: Himalayan hemlock Pinaceae (pine family) Tsuga forrestii: Forest Hemlock Pinaceae (pine family) Tsuga heterophylla: western hemlock Pinaceae (pine family) 263 ...
An Eastern Hemlock branch at the Kortright Centre for Conservation. Tsuga canadensis, also known as eastern hemlock, [3] eastern hemlock-spruce, [4] or Canadian hemlock, and in the French-speaking regions of Canada as pruche du Canada, is a coniferous tree native to eastern North America. It is the state tree of Pennsylvania. [5]
Associated trees include western hemlock, Sitka spruce, sugar pine, western white pine, ponderosa pine, grand fir, coast redwood, western redcedar, California incense-cedar, Lawson's cypress, tanoak, bigleaf maple and several others. Pure stands are also common, particularly north of the Umpqua River in Oregon. It is most dominant in areas with ...
Mountain hemlock, Tsuga mertensiana [17] Ponderosa pine, Pinus ponderosa [18] Subalpine fir, Abies lasiocarpa [19] Western hemlock, Tsuga heterophylla [20] Western larch, Larix occidentalis [21] Western white pine, Pinus monticola [22] White spruce, Picea glauca [23] Whitebark pine, Pinus albicaulis [24]
Red alder, western hemlock, and bigleaf maple forest With a current inventory of about 7.4 billion cubic feet (210 million cubic metres), red alder comprises 60% of the total hardwood volume in the Pacific Northwest, and is by far the most valuable hardwood in term of diversity of products, commercial value, and manufacturing employment. [ 16 ]