茎的生长形态B 球莖 塊莖 鳞莖 Crom Tuber 根莖 莱狀莖 Rhizome Pfyfloclode College of animal science,Northwest Agriculture Forestry University 西北农林科技大学动物科技学院草业科学系 __________________________________________________________________ College of animal science, Northwest Agriculture & Forestry University 西北农林科技大学动物科技学院草业科学系 Copyright reseved by Long Mingxiu 茎的生长形态S t e m