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betula_pendula_roth

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Betula pendula Roth. - syn.Betula verrucosa Ehrh. - Betulaceae - silver birch, European white birch, Hänge-Birke, Weißbirke, Sandbirke

Erect deciduous tree, up to 25m high; native to Europe, West Asia, Siberia; introduced into North America; with slender usually pendulous branches and white bark readily peeling off in layers; branches and leaves always without hairs; leaves rhombic-ovate, serrate, glutinous when young but glabrous and shining at maturity; petioles slender , strobiles on slender peduncles, usually pendulous, cylindric; wings of nutlet one and a half to two and a half times as broad as its body; blooming April-May.

The bark of Betula pendula (Betulae cortex) contains triterpene substances like betulin, betulinic acid, oleanolic acid and lupeol which are confirmed to posses very interesting (antiretroviral, antimalarial, anti-inflammatory, antiproliferative and apoptosis-inducing) pharmacological activities.
[Identification and isolation of pharmacologically active triterpenes in Betuale cortex, Betula pendula Roth., Betulaceae., Durić, K., Kalodera, Z., Sofić, E., Bosnian journal of basic medical sciences/Udruzenje basicnih mediciniskih znanosti= Association of Basic Medical Sciences, 9(1), 2009, 31-38]

Birch bark has been used as folk medicine externally for treatments of skin rashes, as well as in the form of compresses against abscesses; internally as decoction for skin diseases, dropsy and gout. Birch leaves are used as infusion for „spring cures“, gout and rheumatism and as diuretic for „blood purification“, externally against hair loss and dandruff. The effectiveness of the drug for all these indications has not been established.
[Hagers Handbuch der pharmazeutischen Praxis, Springer-Verlag, Berlin, 2010]

betula_verrucosa.jpg
Köhler, F.E., Medizinal Pflanzen, vol.4, t.33 (1890) [Ev.C.]
http://plantgenera.org/species.php?id_species=141268

www.botanische-spaziergaenge.at_bilder_konica_5_pict2707.jpg
Betula pendula
© Rolf Marschner (2008), www.botanische-spaziergaenge.at

betula_pendula_roth.1499348846.txt.gz · Zuletzt geändert: 2017/07/06 13:47 von andreas

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