Research results showed that there were distinctive morphological differences in seeds and seedlings between D. sophia and the other wild plants. According to the morphological differences, the purity of D.

• 经作者研究表明野生播娘蒿、菥?、芝麻菜和高?菜等植物在种子和幼苗形态特征上具显著的种间差异；应用形态特征鉴定法；可有效地在早期确定播娘蒿种子的真实性、纯度以及采用有效方法去杂.