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猫尾草除异花授粉的有性繁殖、鳞茎及偶有小花的营养繁殖外,倒伏茎节也能再生无性系分株(RN)。作者在静内北海道大学附属牧场的放牧地调查,在1912株中有RN71株(3.7％)。出现的频度平坦草地高于路旁草地。多数亲株只产生RN1株,也有的RN多达8株。RN的分布平均距亲株13厘米,最远45厘米。秋季从拔节后节部产生的分蘖芽或幼态分蘖,被牛踏倒,在适宜环境下形成植株,93％能够越冬,翌年放牧后死亡率增加,到开花期存活约70％,有50％
In addition to vegetative reproduction of cross-pollination, vegetative propagation of bulbs and occasional florets, lodging stems also regenerate clonal ramets (RNs). The author investigated the grazing land in Hokkaido University affiliated ranch, and there were RN71 strains (3.7%) in 1912 strains. The frequency of occurrence of flat grass is higher than that of roadside grassland. Most of the progeny only produce RN1 strains, and some RN up to 8 strains. The average distribution of RN from the parent strain 13 cm, the farthest 45 cm. In the autumn, the tiller bud or young tiller produced from the jointing part of the jointing plant was crouched by the cows and formed plants under suitable environment. 93% of the tillers or tillers were able to wintering. The mortality rate after grazing increased in the following year, and the survival rate was about 70%