Accessed 2020-10-28. In all its forms the mountain hemlock is remarkably beautiful. Presumably mixed coniferous forests of the Pacific Coast of North America. The colour of the foliage of T. mertensiana is usually of a glaucous hue, but of varying shades, which it is pointless to distinguish varietally. It has become the most important timber hemlock in North America. Gard. It was at some time considered to be a hybrid between, Plantae - Coniferophyta - Pinopsida - Pinales - Pinaceae - Tsuga, Conservation Status Map, http://creativecommons.org/licenses/by-nc/3.0/, http://creativecommons.org/licenses/by-nc-sa/3.0/, Species of concern in the Puget Sound watershed, Marine invertebrates of Puget Sound and adjacent waters, Terrestrial vertebrates of the Puget Sound watershed, USGS: Nonindigenous Aquatic Species in Puget Sound, Washington Natural Heritage Program species lists. Tsuga × jeffreyi (A.Henry) A.Henry: Accepted: WCSP: Tsuga mertensiana (Bong.) Image Tom Christian. Native of western N. America from S. Alaska south through the coastal ranges to N. California, where it is confined to the Sierra Nevada; there is also a less extensive area in the northern Rocky Mountains. Related Plants. Genus. Recommended citation'Tsuga mertensiana' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/tsuga/tsuga-mertensiana/). 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. They have also been observed on Mt Baker, whence came the type of T. × jeffreyi. This trio of Tsuga mertensiana at Murthly Castle, Perthshire, UK, planted c. 1862, has long attracted the admiration of dendrologists. (family Pinaceae). ; Tsuga pattoniana (A. Taxonomy. Rydb. August 2005). Murr.) mertensiana. Scientific Name: Tsuga Carriere. Tsuga jeffreyi. 1925, 24 × 21⁄4 ft (1969). 1-53). (Pinaceae) x jeffreyi. The record derives from WCSP Campo-Duplan & Gaussen; × Tsugo-Picea crassifolia (Flous) Campo-Duplan & Gaussen. Tsuga jeffreyi. ; Abies pattonii Jeffrey, nom. Seed cones ovoid, (1–)1.5–2.5(–3) × 1–2.5cm; scales ovate, 8–15 × 6–10mm, apex round to pointed. Serv., U.S.D.A. Roy. Hybrid parent of. Synonyms: Pinus mertensiana Bong. 1872, 102 × 71⁄4 ft (1981); Port-na-Craig, Perths., 66 × 81⁄4 ft (1983); Keir House, Perths., 70 × 83⁄4 ft (1985); Dupplin Castle, Perths., Gardens, 82 × 93⁄4 ft and, Pinetum, 98 × 81⁄2 ft (1983); Cowden Castle, Fife, 72 × 71⁄4 ft (1984); Glamis Castle, Angus, Riverside Walk, 84 × 101⁄2 ft, forking and, Pinetum, 80 × 61⁄2 ft (1981); Durris House, Kinc., 77 × 83⁄4 ft (1980); Dochfour, Inv., 80 × 81⁄4 ft and 75 × 81⁄2 ft, fine trees (1982); Reelig House, Inv., 56 × 81⁄2 ft (1982); Fairburn, E. Ross, Old Garden, 115 × 73⁄4 ft, Pinetum, 82 × 101⁄2 ft and, above House, 95 × 81⁄2 ft (1982); Clandeloye, Co. Down, 60 × 73⁄4 ft (1976). Ex. 1986. For information about how you could sponsor this page, see How You Can Help, Article from Bean's Trees and Shrubs Hardy in the British Isles. Interpreting Wetland Status. Related Links. inedit. 6 (0 to -10 F / -17.8 to -23.3 C), HORTICULTURAL STATUS: RHS Accepted Genus & Gardner, M. (Conifer Red List Authority), This taxon was described from material said to have come from Vancouver Island; however, recently it has not been found there, nor on the mainland of British Columbia or in Washington, U.S.A. (Robert Van Pelt, University of Seattle, pers. 1862, 105 × 93⁄4 ft, pl. You can unsubscribe at any time by clicking the link in the footer of our emails. T. × jeffreyi (Henry) Henry T. pattoniana var. Mountain hemlock, black hemlock, hemlock spruce (Peattie 1950), pruche de Patton (Taylor 1993).Taxonomic notes. Note: This information is based on publications available through Tropicos and may not represent the entire distribution. The epithet honors Scottish plant-hunter and botanist John Jeffrey (1826-1854), who was active on the west coast of the United States, particularly in Washington, Oregon, and California. ; crown narrowly conic. mertensiana var. Photographed 12 June 2020. (Pinaceae) Related Species. Tsuga. Rehd. Northwest, Part I (1969), p. 133). A site produced by the International Dendrology Society. Edin., Vol. At Murthly Castle, near Perth, there is a group of several trees (one with pendulous branchlets) which makes one of the most beautiful garden pictures one can imagine, produced by foliage alone. Tsuga ulleungensis. Pl. Terms and Conditions — Home | Contact | UW Privacy | UW Terms of Use, Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO 63110 USA, International Union for Conservation of Nature and Natural Resources. Carrière: Accepted: WCSP: Tsuga sieboldii Carrière: Accepted: WCSP: Statistics. ; T. hookeriana (A. grandicona Farjon), and one hybrid (Tsuga × jeffreyi (Henry) Henry) also being considered acceptable. Hybridization is rare, if it occurs at all, and it is therefore of little consequence (R.J. Taylor 1972). The preference is for moist, cool growing sites with northerly exposures, frequently in concert with Abies amabilis and deciduous ericaceous shrubs. Tropicos does not categorize distributions as native or non-native. Tsuga heterophylla. Overview → Pathways; Overview . List-Based Rec., Soil Conserv. COLOR: Medium Green Typing "Northwestern Sedge" return only 'Northwestern Sedge'. Murr.) It was discovered in 1827 on Baranof Island, Alaska, by the German botanist K. Mertens during the Russian circumnavigation of the globe led by Capt. Tsuga mertensiana subsp. Tsuga formosana. Even where both species occupy the same site and morphologically intermediate individuals exist, a mere three specimens, all from Corral Pass near Mount Rainier, were considered of possible hybrid origin based on leaf pigment chemistry. If you are are using it and are not a member, consider joining or donating to the ACS to support this and our other educational projects. window.propertiesFromHigherTaxa=[{"rank":"genus","name":"Tsuga","properties":["author"]},{"rank":"family","name":"Pinaceae","properties":["illustrator","illustration copyright"]}]; https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse grained fna xml/V2/V2 410.xml, Copyright is held by the Flora of North America Association for all volumes except Volumes 24 and 25 (Poaceae). Chú thích Liên kết ngoài. It needs a moist climate and a pure atmosphere. jeffreyi ; Authority: (Henry) Schneider ; Notes. Trees under the name T. × jeffreyi are in cultivation, but their provenance is unknown. Engelmann gave it generic rank and more recently some French investigators have advanced the theory that it is the result of hybridisation between T. heterophylla and Picea sitchensis, and that the minor variant named T. crassifolia by Mme Flous is a hybrid between the mountain hemlock and Picea engelmannii, thus having the western hemlock and two spruces in its genetic make-up. The late Derek Spicer attempted to propagate it, but it is not known whether he succeeded. Tsuga (/ s Ù ɡ ə / uit Japanse 栂 (ツガ), de naam van Tsuga sieboldii) is een geslacht van coniferen in de subfamilie Abietoideae. For copyright and licence information, see the Licence page. Carr. Alta., B.C., Alaska, Calif., Idaho, Mont., Oreg., Wash. Tsuga heterophylla is a dominant species over much of its broad distributional range. Among other Scottish trees are: Blair Atholl, Perths., pl. Utilizing double quotes for exact terms can narrow your search results. Tsuga jeffreyi (A.Henry) A.Henry, 1919 : Tsuga jeffreyi là một loài thực vật hạt trần trong họ Thông. Distribution. © The Plant List 2013 — Examples in eastern and southern England are: Fulmodestone, Norfolk, 72 × 51⁄4 ft (1969); Tilgate, Sussex, pl. This name is the accepted name of a species in the genus Tsuga Tsuga chinensis. 1872, 102 × 71⁄2 ft (1970); Fairburn, Ross and Cromarty, 102 × 71⁄2 ft (1970). The record derives from WCSP (data supplied on 2012-03-23) which reports it as an accepted name (record 386592) with original publication details: Proc. To contact the editors: info@treesandshrubsonline.org. Principal photography was generously donated by Janice LeCocq Photgraphy, Additions to the International Conifer Register. jeffreyi A. Henry, x Hesperotsuga jeffreyi (A. Henry) C. N. Page, and Tsuga x jeffreyi (A. Henry) A. Henry. Basic information. The leaves are mostly two-ranked, with a greenish upper surface, a few lines of stomates on the upper surface near the tips, and a paler underside with greenish-white stomatal bands (rather than waxy bluish green on both surfaces). There are inconspicuous lines of stomata on both surfaces. There are no related plants for species Tsuga jeffreyi. Roy. Tsuga ×jeffreyi (Henry) Henry. Twigs yellow-brown, finely pubescent. Murr. Tsuga jeffreyi Aug. Henry: United States (North America) Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Kingdom Plantae ( 1PLAK ) Phylum Pinophyta ( 1PINP ) Class Pinopsida ( 1PINC ) Order Pinales ( 1CONO ) Family Pinaceae ( 1PINF ) Genus Tsuga ( 1TSUG ) Species Tsuga mertensiana var. 1905, 40 × 63⁄4 ft (1982); National Pinetum, Bedgebury, Kent, pl. Species. The common name hemlock (tree) is derived from a perceived similarity in the smell of its crushed foliage to that of the unrelated plant poison hemlock.Unlike the latter, Tsuga species are not poisonous. Bark gray-brown, scaly and moderately fissured. Please click on any button to follow a link to that database. Tsuga jeffreyi Aug. Henry: United States (North America) Note: This information is based on publications available through Tropicos and may not represent the entire distribution. One of the three Tsuga mertensiana in the group at Murthly has distinctly pendulous foliage, making it a very attractive subject.

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