内蒙黄芪Astragalus mongholicus Bunge为常用中药,近年来需用量逐步增加,各地多由野生变为人工栽培。为了选育优良品系,我们曾做了人工授粉的工作。现将观察到的开花习性简介如下: 材料来源于山西浑源、应县;内蒙包头、固阳、凉城。选生长健壮无病的植株种于本所西北旺药场,于开花期进行试验观察。一、开花习性及花器构造 Inner Mongolia Astragalus mongholicus Bunge is commonly used traditional Chinese medicine, in recent years the amount needed to gradually increase throughout the wild from artificial cultivation. In order to breed fine lines, we have done artificial pollination work. The observed flowering habits are as follows: Materials from Shanxi Hunyuan, should be County; Inner Mongolia Baotou, Guyang, Liangcheng. Select healthy growth of disease-free plants in the Institute of Northwest Mong medicine field, in the flowering of the experimental observation. First, the flowering habits and flower structure