绒毛草(约克郡再生草)是联合王国草原上广泛分布、对饲料生产作出了重要贡献的牧草。它的生物学特性和重要性已有人评述(Watt 1978)。最近的著作指出,英格兰和威尔士二十年以上的永久牧场草地90％的面积上有绒毛草;二十年以下的草地50％以上有绒毛草;10％的老草地这个种覆盖面积占25％以上。苏格兰东部二十年以上的草地,绒毛草的平均覆盖率为13％。 Fluff grass (Yorkshire regenerated grass) is a widely distributed pasture in the grasslands of the United Kingdom that has made a significant contribution to feed production. Its biological characteristics and importance have been reviewed (Watt 1978). Recent work indicates that over 90% of permanent pastures in England and Wales over two decades have velvetleaf; over 50% of grassland below 20 years have velvetleaf; and 10% of older grass cover 25% the above. The average coverage of velvet grass in grasslands of more than 20 years in eastern Scotland is 13%.