请问这里的green是不可数名词 the colour of grass and the leaves of most plants and trees 吗？

因为如果使用以下意思，patches of 应该加上 greens 才对？

[可数名词](British English) an area of grass, especially in the middle of a town or village （尤指城镇或村庄中心的）草地，草坪，公共绿地

Children were playing on the village green.

孩子们在村中心的草地上玩耍。