白: white楠: nanmu白榄: canarium album; chinese white olive白桦苷配基: betuligenin白榄根: white canarytree root白桦苷: betulin; betuloside白椴: white basswood白桦脂酸: betiulic acid; betulic acid; betulicacid; betulinic acid白槎: baicha白桦脂醇: betulin白槲皮: white oak bark白桦现象: white birch