You can change the display of the base map and layers by clicking … Genus: Betula. pumila Linnaeus and B . glandulosa. Royal Botanic Gardens, Kew. nana Linnaeus subsp. https://fr.wikipedia.org/w/index.php?title=Betula_glandulosa&oldid=177760269, Taxobox utilisant une classification non précisée, Catégorie Commons avec lien local différent sur Wikidata, licence Creative Commons attribution, partage dans les mêmes conditions, comment citer les auteurs et mentionner la licence. Betula glandulosa Michaux. vaseyana, Ribes inerme, Salix bebbiana, Salix boothii, Salix eastwoodiae and Salix lucida. The IUCN Red List of Threatened Species 2014. Hybrid parent of. Genus: Betula. Species description, photo and/or distribution map: Dwarf birch, resin birch Betula glandulosa bouleau glanduleux Darbyshire et al., 2000 [1], This species is valued for its erosion control potential, and has been used to help stabilize stream-banks. Québec (Province). It reproduces either sexually via abundant viable seed production (Hermanutz et al 1989) or asexually via clonal growth (Weis and Herma- nutz 1988, 1993). tortuosa, which has a similar habit and growth pattern. It is closely related to the dwarf birch (Betula nana), and is sometimes treated as a subspecies of it, as B. nana subsp. The fruiting catkins are erect, 1–2.5 cm (3⁄8–1 in) long and 5–12 mm (3⁄16–15⁄32 in) broad. The IUCN Red List of Threatened Species 2014. Les rameaux sont glabres et munis de glandes verruqueuses et résineuses, d'où son nom commun. Habitat and distribution [ edit ] This plant occurs in arctic and cool temperate areas from Alaska east to Newfoundland and southern Greenland , and south at high altitudes to northern California , Colorado , and the Black Hills of South Dakota in the west, [2] and locally south to northern New York in the east. Govaerts, R. (2003). Flowering Time: May--Jun Note: Furlow reports Betula pumila L. from California, but this author (Sawyer) assigns California specimens, including those identified as Betula pumila var. [1] Its preference as a food source varies depending on the specific population; moose in Alberta, for example, are known to graze on it heavily, whereas moose in Alaska are observed to eat it at low levels. Betula glandulosa was once taxonomically separate from Betula nana (de Groot et al. 1997); they are now combined into one species Betula nana according ITIS (n.d.). Betula glandulosa, taken at Chepeta Lake, Uintah, Utah. Age and vertical growth of Betula glandulosa ... Biomass distribution along 13 strata of 10 cm at three representative sites, near Umiujaq, Nunavik. The trunks are slender, rarely over 5–10 cm (2–4 in) diameter, with smooth, dark brown bark. Hybrids with several other birches occur.[1]. The seed rain and seed bank of arctic dwarf birch, Betula glandulosa, were studied at Kuujjuaq, Que., and Tarr Inlet, near Iqaluit, N.W.T. Betula ×dugleana Lepage. Vernacular names. (2013). Royal Botanic Gardens, Kew, 431 pp., ISBN 978-1-84246-141-9 . Hybrid parent of. En anglais, on le nomme Dwarf Birch ou Glandular Birch. exilis (Sukaczev) Hultén, creating a confusing complex of intermediate forms. Common name: Dwarf Birch . glandulosa intergrades with both B . Les feuilles sont alternes, simples et de forme obovée. Based on pollen records, the present limited distribution of Betula glandulosa on Baffin Island represents the remnants of once more widely distributed populations, and the failure of sexual reproduction at the northern edge of its range may be responsible for the decline in abundance. Contact us to report errors. Pronunciation: BET-u-la glan-du-LO-sa. Where their ranges meet, B . willow is 98.1% of the above-ground shrub biomass, bog birch (Betula glandulosa) is 1.25%, Potentilla fruticosa is 0.33%, and soap berry (Shepherdia canadensis) is 0.14%, on average. Flickr photos above were identified by the individual photographers but not reviewed by EoPS. Elles sont glabres sur les deux faces et la marge est crénelée. cUCIIllata. Synonyms: Betula nana var. Par la suite, je me suis attardée aux causes de l’hétérogénéitéde la densification de la strate arbustive et ai trouvé que celleétait-ci principalement attribuable à un ensemble de facteurs historiqueet topographiques. Betula ×commixta Sargent. Seed from 27 Dwarf birch (Betula glandulosa Michx.) tortuosa, which has a similar habit and growth pattern. https://www.fs.fed.us/database/feis/plants/shrub/betgla/all.html Date Added: 2001-01 … Betula pumila: 14 Leaf blade 1–2(–4) cm, mostly obovate to nearly orbiculate, base cuneate to rounded, apex obtuse to rounded, surfaces abaxially mostly glabrous to moderately pubescent; twigs essentially glabrous and warty with large resinous glands. Scrub Birch . Betula glandulosa – dwarf birch, resin birch, swamp birch Distribution: Alaska south to the Sierra of California, east to Nevada and Colorado, and also to Newfoundland and New York. Black bars represent woody biomass and gray bars represent foliar biomass. Habitat and distribution. This plant occurs in arctic and cool temperate areas from Alaska east to Newfoundland and southern Greenland, and south at high altitudes to northern California, Colorado, and the Black Hills of South Dakota in the west,[2] and locally south to northern New York in the east. exilis is native throughout Alaska and across northern Canada to Baffin Island, Labrador, and Greenland. Distribution JAPAN: Honshu. Betula glandulosa (a rare CNPS list 2.2 plant) is a spreading to upright deciduous shrub.Plants have glabrous twigs with large, warty, resinous glands, and small, rounded leaves with dentate to crenate margins. Possibly threatened by grazing, trampling, vehicles, and recreational activities. (1985) described pollen deposition and the distribution of Betula glandulosa at the limit of Low Arctic tundra in southern Baffin Island. Distribution in Scotland Bog Birch . Le bouleau glanduleux est un petit arbuste dépassant rarement deux mètres de hauteur. Le fruit est une nucule comprimée entourée d'une aile marginale interrompue au sommet[5]. Branches are dark brown to brownish black, dull and bark is not exfoliating. exilis (Sukaczev) Hultén, creating a confusing complex of intermediate forms. Global Pollen Project UUID 60862f92-c6f8-4de9-a26e-91ca614c8259 Botanical Reference None available. bouleau glanduleux Darbyshire et al., 2000 mine the distribution of Betula glandulosa in the Frobisher Bay area as a first estimate of the present extent of low arctic tundra, and (2) to determine whether or not the surface deposition of pollen at sites within the area is sufficiently representative of the regional vegetation to permit pollen counts to be used as a basis for mapping the extent of low arctic tundra in the past. Betula glandulosa Michaux. Betula glandulosa Michaux is an accepted species name sensu FNA Ed. Known Distribution in Maine: This rare plant has been documented from a total of 1 town(s) in the following county(ies): Piscataquis. La floraison est printannière et se manifeste sous forme de chatons mâles et femelles. [1], Many species of wildlife rely on this shrub as a food source, particularly ungulates such as moose, deer, caribou and elk. Based on pollen records, the present limited distribution of Betula glandulosa on Baffin Island represents the remnants of once more widely distributed populations, and the failure of sexual reproduction at the northern edge of its range may be responsible for the decline in abundance. In addition, users can learn about the location of vouchered specimens and see images to get a better visual for each plant. In Scandinavia, Betula nana hybridises naturally with downy birch, Betula pubescens, to form B. pubescens ssp. Betula glandulosa. Bog Birch . At the northern limit of its distribution, arctic dwarf birch, Betula glandulosa, shows nearly complete absence of sexual reproduction (i.e., <;0.5% viable samaras) and maintains its populations vegetatively. Buds are chestnut brown, 1-2 mm long, ovoid, acute and very resinous. Another closely related species of dwarf birch, Betula glandulosa, occurs in Alaska, northern Canada and Greenland. (2013). En Europe du Nord, on retrouve également cette espèce dans les milieux plus humides, assez pauvres dans des endroits non perturbés [4]. Fig. On le trouve dans les tourbières et les dépressions humides des zones montagneuses au Québec [3]. nana Linnaeus subsp. shrubs were collected from the one remaining B. glandulosa population in New Brunswick. Illustration NT166. Bog birch is a native small tree that is listed as rare in the four states in which it occurs: Maine, New Hampshire, Massachusetts, and Connecticut. Species description, photo and/or distribution map: Dwarf birch, resin birch Betula glandulosa To submit rare plant observation data, use the CNDDB field survey form. Betula ×eastwoodae Sargent. Un article de Wikipédia, l'encyclopédie libre. Known Distribution in Maine: This rare plant has been documented from a total of 1 town(s) in the following county(ies): Piscataquis. In addition, users can learn about the location of vouchered specimens and see images to get a better visual for each plant. Ashburner, K. & McAllister, H.A. willow is 98.1% of the above-ground shrub biomass, bog birch (Betula glandulosa) is 1.25%, Potentilla fruticosa is 0.33%, and soap berry (Shepherdia canadensis) is 0.14%, on average. Vous pouvez partager vos connaissances en l’améliorant (comment ?) At each site dispersing seeds were captured in sticky traps in three adjacent plots having locally high and low birch densities; soil cores were collected in parallel. Betula glandulosa is an erect deciduous shrub species that can grow up to 2.5m (DeGroot et al 1997).Its geographical distribution ranges from Greenland to Alaska and all the way south to California (DeGroot et al 1997). You can check The Plant List for further information. Another closely related species of dwarf birch, Betula glandulosa, occurs in Alaska, northern Canada and Greenland. Branchlets are coarse, glabrous, reddish-brown to grey, covered with resinous glands and scattered long hairs. Biomass of Betula glandulosa..... 23 2.3.3. 1 The boxplot distribution of estimated biomass of dwarf birch (Betula glandulosa) leaves (g of dry matter) from 3 different browsing pressure simulated in the arctic tundra at Deception Bay, Nunavik, Ca. Click on an accepted name below to view its PLANTS Profile with all synonyms, distribution map, more information, and Web links if available. Betula glandulosa, American dwarf birch, also known as resin birch or shrub birch, is a species of birch native to North America, occurring in arctic and cool temperate areas from Alaska east to Newfoundland and southern Greenland, and south at high altitudes to northern California, Colorado, and the Black Hills of South Dakota in the west, and locally south to northern New York in the east. Buds are chestnut brown, 1-2 mm long, ovoid, acute and very resinous. intermedia. CAN. (2013). Betula ×sargentii Dugle. In North America, Betula nana subsp. A prostrate or erect shrub 0.3-2.5 m in height. Reason(s) for rarity: Disjunct from principal range. Betula glandulosa Michaux is an accepted species name sensu FNA Ed. The New York Flora Atlas is a source of information for the distribution of plants within the state, as well as information on plant habitats, associated ecological communities, and taxonomy. Type: Broadleaf. Le Bouleau glanduleux (Betula glandulosa) est un petit arbuste nordique de la famille des Betulaceae [2]. glandulosa intergrades with both B . Stressed plants are subject to attack by the bronze Espèce de milieux ouverts, on le retrouve souvent avec l'épinette noire ou l'épinette blanche. Betula glandulosa – dwarf birch, resin birch, swamp birch Distribution: Alaska south to the Sierra of California, east to Nevada and Colorado, and also to Newfoundland and New York. IUCN Red List Category: (Least Concern). Betula glandulosa: 15 Dwarf birch is a widespread arctic species with a circumpolar distribution. var. USDA Hardiness Zone 7. Distribution in … ----- 25 Figure 4. Common name: Dwarf Birch . Native to (or naturalized in) Oregon: Yes. Tundra patches occur with increasing frequency as the tree line is approached, supporting Reason(s) for rarity: Disjunct from principal range. selon les recommandations des projets correspondants. 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