| 词条 | Betula ermanii |
| 释义 |
|name = Erman's birch |image = Betula ermanii (200612).jpg |genus = Betula |parent = Betula subg. Neurobetula |species = ermanii |authority = Cham. }}Betula ermanii, or Erman's birch,[1] is a species of birch tree belonging to the family Betulaceae. It is an extremely variable species and can be found in Northeast China, Korea, Japan, and Russian Far East (Kuril Islands, Sakhalin, Kamchatka). It can grow to {{convert|20|m|ft}} tall.[2] It is noted for its peeling bark, which can sometimes be removed in sheets, but usually shreds and hangs from the trunk and under branches. Yellow-brown male catkins appear with the leaves in spring.[3] The cultivar 'Grayswood Hill' has gained the Royal Horticultural Society's Award of Garden Merit.[4] References1. ^{{Cite book|url=http://www.forest.go.kr/kna/special/download/English_Names_for_Korean_Native_Plants.pdf|title=English Names for Korean Native Plants|publisher=Korea National Arboretum|year=2015|isbn=978-89-97450-98-5|location=Pocheon|pages=373|access-date=26 January 2017|via=Korea Forest Service|deadurl=yes|archiveurl=https://web.archive.org/web/20170525105020/http://www.forest.go.kr/kna/special/download/English_Names_for_Korean_Native_Plants.pdf|archivedate=25 May 2017|df=}} 2. ^{{cite web|url=http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200006146 |title=Betula ermanii |author=Pei-chun Li & Alexei K. Skvortsov |work=Flora of China |publisher=Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA |accessdate=13 May 2013}} 3. ^{{cite book|title=RHS A-Z encyclopedia of garden plants|year=2008|publisher=Dorling Kindersley|location=United Kingdom|isbn=1405332964|pages=1136}} 4. ^http://apps.rhs.org.uk/plantselector/plant?plantid=243 Further reading
6 : Betula|Plants described in 1831|Trees of China|Trees of Japan|Trees of Korea|Trees of Siberia |
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