Betula platyphylla




Family Betulaceae
Scientific name Betula platyphylla Sukaczev
Synonyms Betula alba L. var. japonica Miquel; Betula alba L. var. typica Trautvetter; Betula alba L. var. typica Korshinsky; Betula alba L. subsp. latifolia Regel; Betula alba L. subsp. latifolia Regel var. tauschii Regel; Betula alba L. subsp. mandshurica Regel; Betula alba L. subsp. tauschii Regel; Betula japonica Siebold ex H. J. P. Winkler, non Thunberg; Betula japonica Siebold ex H. J. P. Winkler var. kamtschatica (Regel) H. J. P. Winkler; Betula japonica Siebold ex H. J. P. Winkler var. mandshurica (Regel) H. J. P. Winkler; Betula japonica Siebold ex H. J. P. Winkler var. rockii Rehder; Betula japonica Siebold ex H. J. P. Winkler var. szechuanica C. K. Schneider; Betula japonica Siebold ex H. J. P. Winkler var. tauschii H. J. P. Winkler; Betula latifolia Komarov; Betula mandshurica (Regel) Nakai; Betula mandshurica (Regel) Nakai var. japonica (Miquel) Rehder; Betula mandshurica (Regel) Nakai var. mandshurica; Betula mandshurica (Regel) Nakai var. szechuanica (C. K. Schneider) Rehder; Betula platyphylla Sukaczev var. japonica (Miquel) H. Hara; Betula platyphylla Sukaczev var. kamtschatica (Regel) H. Hara; Betula platyphylla Sukaczev var. mandshurica (Regel) H. Hara; Betula platyphylla Sukaczev var. szechuanica (C. K. Schneider) Rehder; Betula szechuanica (C. K. Schneider) C. A. Jansson; Betula verrucosa Ehrhart var. platyphylla (Sukaczev) Lindley ex Jansson
Common name (Japanese common name) shirakaba [white clouds]
(English common name) Asian white birch
Distribution (Japan) Hokkaido, Honshu (north of Central region)
(Other nations) Russia, Korea, China
Chromosomal number 2n=28
Description Plants 20m. Leaves 5-8cm length. Flowers flowering in April. Deciduous. Arbor trees.
Reference Betula platyphylla Sukaczev
Betula platyphylla Suk.
Process for preparing natural product derivatives from plants in a single step (US Patent 6280778/2001)
Wet cleaning system with shrinkage prevention agent (US Patent 6184193/2001)
Compositions which contain triterpenes for regulating hair growth (US Patent 6482857/2002)
Method for regulating hair growth (US Patent 6451777/2002)
Betulinol derivatives (US Patent 6890533/2005)
Lipolysis stimulator (US Patent 7300675/2007)
Methods for producing transgenic plants with enhanced resistance and decreased uptake of heavy metals (US Patent 7173163/2007)
Lipolysis promoter and food-and-drink and feed containing the same (US Patent 20070218108)



April 2007
at Ibaraki Prefecture Botanical Garden
April 2007
at Ibaraki Prefecture Botanical Garden



December 2007
at Ibaraki Prefecture Botanical Garden



Female floers


April 2007
at Ibaraki Prefecture Botanical Garden