Birch
A birch tree is a thinleaved deciduous hardwood tree of the genus Betula.[2] They are in the family Betulaceae, which also includes alders, hazels, and hornbeams.
Birch | |
---|---|
Silver birch | |
Scientific classification | |
Kingdom: | Plantae |
Order: | Fagales |
Family: | Betulaceae |
Subfamily: | Betuloideae |
Genus: | Betula L. |
Subgenera | |
| |
Range of Betula | |
Synonyms[1] | |
|
Betula contains 30 to 60 species of which 11 are on the IUCN 2011 Green List of Threatened Species. They are usually rather short-lived pioneer species widespread in the Northern Hemisphere.[3]
Birch Media
The front and rear view of a piece of birch bark
A birch-curtain in November in Ystad.
Fossil leaf of Betula leopoldae
Frosty birches in Kangasala, Finland in February 2013
Birch trees by a river in Hankasalmi, Finland
References
- ↑ "World Checklist of Selected Plant Families: Royal Botanic Gardens, Kew". apps.kew.org.
- ↑ Sunset Western Garden Book, 1995:606–607
- ↑ Ashburner K. & McAllister H.A. 2013. The genus Betula: a taxonomic revision of birches. Royal Botanic Gardens, Kew.