F . is usually purple by investigation and indentification of these species in plants , which is different from narration in some documents . detailed morphological and histological study has been carried on to contrast sichuan bai zhi with hangzhou bai zhi and male bai zhi 原植物调查及鉴定发现杭白芷与白芷在茎与叶鞘的颜色上无明显差异，一般茎的基部与叶鞘多为紫色，与文献记载的有所不同，作者认为不能以此作为分类依据。
Tufted perennial with strong creeping stolons ; leaf yellowish green to green , folded in bud ; leaf blade smooth , lanceolate , slightly bent at the joint with the sheath ; inflorescence of a terminal single raceme , spike - like , smooth , sub - sylindrical and slightly bent inwards 本种为多年生，簇生性，具强壮匍匐茎；叶绿至黄绿色，在芽期褶生，叶片多平滑，披针至长条形，先端略钝，于叶鞘成一角度折生；花序为单一顶生总状花序，光滑无毛，平扁，稍向内弯。
The results showed that there are no significant difference within the stomatic distribution of outer epidermis of young and aged stem and aged leaf sheath in three plants ; but there are significant or very significant difference within apex , middle and base of young and aged leaves 结果表明：三种植物的幼茎、成熟茎和成熟叶鞘外表皮的上部、中部、基部的气孔分布均无显著性差异，而幼叶和成熟叶的上、中、下部的气孔分布存在着显著性差异或极显著差异。
The results showed that there are no significant difference organs , within the stomatic distribution of outer epidermis of young and aged stem and aged lea , sheath in three plants ; but there are significant or very significant difference within apex , middle and base of young and aged leaves 结果表明：三种植物的幼茎、成熟茎和成熟叶鞘外表皮的上部、中部、基部的气孔分布均无显著性差异，而幼叶和成熟叶的上、中、下部的气孔分布存在著显著性差异或极显著差异。
After comparatively researching the morphology , anatomy and development process between carpel and leaf , we put forward a viewpoint that the carpellary disc of paeonia is not from the receptacular projection , but is a appendant organ of carpel . they come from leaf blade and leaf sheath separately . ( 3 ) after researching carpellary morphology and anatomy of nine groups of sect 通过对心皮和房衣与叶子的形态、解剖和发育的比较，认为芍药属植物的房衣不是花托上的突起，而是心皮的一个部分，即每个心皮及其房衣可能共同起源于一片完整的叶子，心皮来源于叶片，房衣来源于叶鞘。
