小冠花又名多变小冠花,是1973年从美国引进的一种多年生草本植物。1984年石楼县从黄委绥德水土保持科学试验站引进种籽0.5斤,当年以塑料薄膜复盖育苗,后移栽大田。经二年试验栽培,发现这种草耐寒、耐瘠薄,不择土壤,生活力强,适宜我县种植。小冠花侧根横行走串,盘根错结,茎蔓交织,复盖度高,是一种优良的水土保持牧草。 Small crown also known as changeable small crown, is introduced in 1973 from the United States a perennial herb. In 1984, Shilou county introduced seed from the Suide Hydropower Station of the Yellow River Science and Technology Experimental Station to 0.5 kg. In the same year, plastic sheeting was used to cover nursery and transplanted the field. After two years of trial cultivation, we found that the grass is hardy and cold-tolerant, does not select soil, has strong vitality and is suitable for planting in our county. Small crown flower lateral root walking string, packing the wrong knot, stem and vine intertwined, coverage is high, is an excellent soil and water conservation forage.