Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Betula_uber> ?p ?o }
- Betula_uber abstract "Betula uber (Virginia Round-leaf Birch) is a rare species of tree in the birch family. One of the most endangered species of North American trees, it is endemic to Smyth County, in the U.S. state of Virginia. It is part of the temperate broadleaf and mixed forests biome.The tree was first described in 1918 as a variety of Betula lenta, and elevated to species status in 1945. It hybridizes with B. lenta and it has been suggested that it is actually a round-leaved mutant form of that species. Some authorities prefer to treat it as a variety.After it was first discovered, the tree was not seen again and was thought to be extinct until 1975, when some individuals were located. These 18 adult trees and 23 saplings and seedlings were in a forest along the degraded banks of Cressy Creek on Smyth County, Virginia. The tree was federally listed as an endangered species and conservation efforts were begun. Many seedlings were sprouted in greenhouses and planted in the forest. By 1995 there were 20 populations and it was downlisted to threatened status. The tree was propagated in order to discourage collectors from taking wild specimens, or vandals from destroying them. A recent count estimated 961 individuals in the wild as of 2006. Eight of these are in the original creekside population. The species will not be removed from the endangered species list yet because it has not been observed reproducing sexually, and naturally, more than once. The expansion of its range is limited because the area is surrounded by agricultural land, but the territory on which the tree occurs is not immediately threatened.This is a tree of moderate size, growing up to 15 meters tall. The crown is compact. The bark is aromatic and dark brown or black in color. The leaf is round or slightly oval with a heart-shaped base and a toothed edge and measures up to 5 centimeters long. The catkin is up to 2.8 centimeters long and contains tiny samaras measuring 2 millimeters in length. The tree is wind-pollinated and reproduces by seed. Seed production is much heavier in some years than in others. The tree's lifespan is around 50 years.".
- Betula_uber class Eudicots.
- Betula_uber conservationStatus "CR".
- Betula_uber conservationStatusSystem "IUCN2.3".
- Betula_uber division Flowering_plant.
- Betula_uber family Betulaceae.
- Betula_uber genus Birch.
- Betula_uber kingdom Plant.
- Betula_uber order Fagales.
- Betula_uber order Rosids.
- Betula_uber thumbnail Betula_uber_JPG1A.jpg?width=300.
- Betula_uber wikiPageExternalLink www.iucnredlist.org.
- Betula_uber wikiPageExternalLink profile?symbol=BEUB.
- Betula_uber wikiPageExternalLink all.
- Betula_uber wikiPageID "12862122".
- Betula_uber wikiPageLength "4476".
- Betula_uber wikiPageOutDegree "43".
- Betula_uber wikiPageRevisionID "640074022".
- Betula_uber wikiPageWikiLink Agriculture.
- Betula_uber wikiPageWikiLink Anemophily.
- Betula_uber wikiPageWikiLink Angiosperms.
- Betula_uber wikiPageWikiLink Betula.
- Betula_uber wikiPageWikiLink Betula_lenta.
- Betula_uber wikiPageWikiLink Betulaceae.
- Betula_uber wikiPageWikiLink Biome.
- Betula_uber wikiPageWikiLink Birch.
- Betula_uber wikiPageWikiLink Category:Betula.
- Betula_uber wikiPageWikiLink Category:Critically_endangered_flora_of_the_United_States.
- Betula_uber wikiPageWikiLink Category:Endemic_flora_of_the_United_States.
- Betula_uber wikiPageWikiLink Category:Flora_of_Virginia.
- Betula_uber wikiPageWikiLink Category:Flora_of_the_Appalachian_Mountains.
- Betula_uber wikiPageWikiLink Category:NatureServe_Critically_Imperiled_species.
- Betula_uber wikiPageWikiLink Category:Smyth_County,_Virginia.
- Betula_uber wikiPageWikiLink Category:Trees_of_the_Southeastern_United_States.
- Betula_uber wikiPageWikiLink Catkin.
- Betula_uber wikiPageWikiLink Crown_(botany).
- Betula_uber wikiPageWikiLink Endangered_Species_Act.
- Betula_uber wikiPageWikiLink Endangered_species.
- Betula_uber wikiPageWikiLink Endemism.
- Betula_uber wikiPageWikiLink Eudicots.
- Betula_uber wikiPageWikiLink Extinction.
- Betula_uber wikiPageWikiLink Fagales.
- Betula_uber wikiPageWikiLink Flowering_plant.
- Betula_uber wikiPageWikiLink Greenhouse.
- Betula_uber wikiPageWikiLink Habitat_conservation.
- Betula_uber wikiPageWikiLink Hybrid_(biology).
- Betula_uber wikiPageWikiLink Life_expectancy.
- Betula_uber wikiPageWikiLink Plant.
- Betula_uber wikiPageWikiLink Rosids.
- Betula_uber wikiPageWikiLink Samara_(fruit).
- Betula_uber wikiPageWikiLink Sapling.
- Betula_uber wikiPageWikiLink Seed.
- Betula_uber wikiPageWikiLink Seedling.
- Betula_uber wikiPageWikiLink Sexual_reproduction.
- Betula_uber wikiPageWikiLink Smyth_County.
- Betula_uber wikiPageWikiLink Smyth_County,_Virginia.
- Betula_uber wikiPageWikiLink Temperate_broadleaf_and_mixed_forest.
- Betula_uber wikiPageWikiLink Temperate_broadleaf_and_mixed_forests.
- Betula_uber wikiPageWikiLink Tree.
- Betula_uber wikiPageWikiLink U.S._state.
- Betula_uber wikiPageWikiLink Vandalism.
- Betula_uber wikiPageWikiLink Virginia.
- Betula_uber wikiPageWikiLink File:Betula_uber_JPG1Fe.jpg.
- Betula_uber wikiPageWikiLinkText "Betula uber".
- Betula_uber wikiPageWikiLinkText "Virginia round-leaf birch".
- Betula_uber binomial "Betula uber".
- Betula_uber binomialAuthority "Fern.".
- Betula_uber familia Betulaceae.
- Betula_uber genus "Betula".
- Betula_uber hasPhotoCollection Betula_uber.
- Betula_uber ordo Fagales.
- Betula_uber rangeMap "Betula uber range map 2.png".
- Betula_uber rangeMapCaption "Natural range of Betula uber".
- Betula_uber regnum "Plantae".
- Betula_uber species "B. uber".
- Betula_uber status "CR".
- Betula_uber statusSystem "IUCN2.3".
- Betula_uber unrankedClassis Eudicots.
- Betula_uber unrankedDivisio Angiosperms.
- Betula_uber unrankedDivisio Flowering_plant.
- Betula_uber unrankedOrdo Rosids.
- Betula_uber wikiPageUsesTemplate Template:Reflist.
- Betula_uber wikiPageUsesTemplate Template:Taxobox.
- Betula_uber subject Category:Betula.
- Betula_uber subject Category:Critically_endangered_flora_of_the_United_States.
- Betula_uber subject Category:Endemic_flora_of_the_United_States.
- Betula_uber subject Category:Flora_of_Virginia.
- Betula_uber subject Category:Flora_of_the_Appalachian_Mountains.
- Betula_uber subject Category:NatureServe_Critically_Imperiled_species.
- Betula_uber subject Category:Smyth_County,_Virginia.
- Betula_uber subject Category:Trees_of_the_Southeastern_United_States.
- Betula_uber hypernym Species.
- Betula_uber type Article.
- Betula_uber type Eukaryote.
- Betula_uber type Plant.
- Betula_uber type Species.
- Betula_uber type Article.
- Betula_uber type Thing.
- Betula_uber type Q19088.
- Betula_uber type Q756.