The article reports the plant morphological, phirmacognostical, histological characters and chemical constituents of 17 Species of medicinal plants from genus Polygonatum.
本文对黄精属17种药用植物从植物形态、生药性状、组织特征以及化学成分等进行了系统的比较研究；
The evolution of morphological characters in this complex is discussed . 2 . clonal plant ecology a . ageratoides complex is a clonal plant.
2克隆植物生态学三脉紫菀多倍体复合体是能进行克隆生长的克隆植物。
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