在植物中是指密生于植物体表的单细胞丝状的或多细胞分枝状的软毛，具有防寒、防湿的作用。常见于幼嫩茎叶的表面，全体纯白而有光泽，多易脱落。
前言： 目的：对药用植物绵毛酸模叶蓼的组织形态进行鉴别。
Objective: To identify the tissue structure of Polygonum lapathifolium L. var. salicifolium Sibth.
本文观察和描述了绵毛马兜铃的根、茎、根茎及叶的解剖构造。
The structure of the root, stem, rhizome and leaf of Aristolochia mollissima Hance are observed and described in the present paper.
试验结果表明，华北驼绒藜的水分生理指标普遍高于绵毛优若藜，在水分胁迫状态下，华北驼绒藜的光合作用要比绵毛优若藜强。
The results showed that all water parameter of Ceratoides arborescens were higher than that of Ceratoides lanata, and the photosynthetic rate of C. arborescens was also higher under water stress.
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