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Matches in DBpedia 2014 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 profile?symbol=BEUB.
• Betula_uber wikiPageExternalLink www.iucnredlist.org.
• Betula_uber wikiPageExternalLink all.
• Betula_uber wikiPageID "12862122".
• Betula_uber wikiPageRevisionID "580533292".
• 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 Flowering_plant.
• Betula_uber unrankedOrdo Rosids.
• Betula_uber subject Category:Betula.
• Betula_uber subject Category:Critically_endangered_flora_of_the_United_States.
• Betula_uber subject Category:Flora_of_Virginia.
• Betula_uber subject Category:NatureServe_Critically_Imperiled_species.
• Betula_uber subject Category:Smyth_County,_Virginia.
• Betula_uber subject Category:Trees_of_Virginia.
• Betula_uber type LivingThing100004258.
• Betula_uber type Object100002684.
• Betula_uber type Organism100004475.
• Betula_uber type PhysicalEntity100001930.
• Betula_uber type Plant100017222.
• Betula_uber type Tree113104059.
• Betula_uber type TreesOfVirginia.
• Betula_uber type VascularPlant113083586.
• Betula_uber type Whole100003553.
• Betula_uber type WoodyPlant113103136.
• Betula_uber type Eukaryote.
• Betula_uber type Plant.
• Betula_uber type Species.
• Betula_uber type FloweringPlant.
• Betula_uber type Plant.
• Betula_uber type Organism.
• Betula_uber comment "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.".
• Betula_uber label "Betula uber".
• Betula_uber label "Betula uber".
• Betula_uber sameAs Betula_uber.
• Betula_uber sameAs m.02x8bkc.
• Betula_uber sameAs Q1343018.
• Betula_uber sameAs Q1343018.
• Betula_uber sameAs Betula_uber.
• Betula_uber wasDerivedFrom Betula_uber?oldid=580533292.
• Betula_uber depiction Betula_uber_JPG1A.jpg.
• Betula_uber isPrimaryTopicOf Betula_uber.