Birch
genus of plants
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 Temporal range:
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Silver birch | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Fagales |
Family: | Betulaceae |
Subfamily: | Betuloideae |
Genus: | Betula L. |
Subgenera | |
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Range of Betula | |
Synonyms[1] | |
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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]
References
change- ↑ "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.