[[File:根状茎2.jpg|缩略图|[https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1584420217186&di=1293caa97b427d0a73d5e7e4e73f6e1d&imgtype=0&src=http%3A%2F%2Fpic.baike.soso.com%2Fp%2F20131220%2Fbki-20131220071729-38664556.jpg 图链接]]]
[[File:根状茎3.jpg|缩略图|[https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1584420217185&di=f21728bc19cd096e3ce7b1ed19bc9102&imgtype=0&src=http%3A%2F%2F3-im.guokr.com%2FixYopUBv9Nsu-4lDyeFcwxrZ5kuMkVYIj4bDQg_YzGuVAgAA9gAAAFBO.png 原图链接]]]
[[File:根状茎6.jpg|缩略图|[https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1584420217181&di=36407ecbaa01530cd32f9eb06a11cf8c&imgtype=0&src=http%3A%2F%2Ff.hiphotos.baidu.com%2Fbaike%2Fpic%2Fitem%2Fd0c8a786c9177f3e8a9a06ab70cf3bc79e3d56ee.jpg 原图链接]]][[File:根状茎7.jpg|缩略图|[https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1584420217180&di=7b8a0f983256649e30daf1fd4d05b986&imgtype=0&src=http%3A%2F%2Fc.hiphotos.baidu.com%2Fbaike%2Fpic%2Fitem%2Fb151f8198618367a489131632e738bd4b31ce570.jpg 原图链接]]]
[[File:根状茎8.jpg|缩略图|[https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1584420217177&di=2b7dda8f8f5cb7b2e167b9fd9f21039d&imgtype=0&src=http%3A%2F%2Ff.hiphotos.baidu.com%2Fbaike%2Fpic%2Fitem%2F9f2f070828381f30fc4043a3a3014c086e06f05b.jpg 原图链接]]]
== 基本特征 ==
[[File:根状茎6.jpg|缩略图|左|[https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1584420217181&di=36407ecbaa01530cd32f9eb06a11cf8c&imgtype=0&src=http%3A%2F%2Ff.hiphotos.baidu.com%2Fbaike%2Fpic%2Fitem%2Fd0c8a786c9177f3e8a9a06ab70cf3bc79e3d56ee.jpg 原图链接]]]
根状茎外形与根相似，蔓生于土层下，但具有明显的节和节间，叶退化成非绿色的[[鳞片叶]]，[[叶腋]]中的[[腋芽]]或根状茎的[[顶芽]]可形成背地性之力的地上枝，同时节上产生不定根。根状茎贮有丰富的营养物质，可存活一至多年，若因耕犁等外力切断时，茎段上的[[腋芽]]仍可再生为新株。