Steinmetz:Betula

General Index (総索引)

Medicinal Effect (薬効一覧)

Betula alba (and other species)

Also known as (or relevant to) Betula alba (and other species) Family Betulaceae English Names Common White Birch Natural Habitat Europe (especially Eastern Europe) Northern Russia Northern Asia Northern China Japan North America Part(s) Used Cortex Betulae Folia Betulae Gemmae Betulae Pix Betulina = Oleum Rusci = Oleum Betulinum = Oleum Betulae empyreumaticum (distilled from the tar)

Constituent(s) twig and bark: tar (containing pyrocatechin) tannin acid betulin betuloside; leaf: saponin sugar tannin mucilage essential oil: bud: resin essential oil guaiacol creosol phenol Action leaf: diuretic depurative stimulant sudorific astringent; bud: diuretic aromatic; bark: febrifuge astringent depurative digestive; tar: used in skin diseases; oil: used in rheumatism skin diseases and gonorrhoea

Betula lenta

Also known as (or relevant to) Betula lenta Family Betulaceae English Names Sugar Birch Black Birch Sweet Birch Cherry Birch Mahogany Birch Natural Habitat North America (eastern parts) Part(s) Used Cortex Betulae dulce

Constituent(s) essential oil (containing methyl salicylate) Action the tree yields an oil similar to Oleum Gaultheriae; from the sap of the tree sugar is produced