红豆草(Onobrychis satlva Lam.)又名驴食豆,为多年生豆科草本植物。经多年试验研究表明,该草具有抗旱耐寒,适应性广,适口性好等特点,是各种家畜的优质饲草,也是培养地力,蓄水保土的优良草种。但由于种子缺乏,为大面积推广种植造成了困难。为了加速其种子繁殖,掌握其开花结实习性及与环境条件的关系,进而为杂交育种工作提供必要的依据。我们于1980——1981年对该草的开花习性进行了观察。 Onobrychis satlva Lam. Also known as donkey beans, perennial leguminous herbs. After years of experimental studies have shown that the grass has drought and cold, wide adaptability, palatability and good characteristics, is a variety of livestock forage quality, but also to cultivate fertility, water and soil of fine grasses. However, the lack of seeds has created difficulties in popularizing large areas. In order to speed up its seed multiplication and grasp its flowering and stamina habits and the relationship with environmental conditions, and thus provide the necessary basis for hybrid breeding. We observed the flowering habits of the grass in 1980-1981.