dropseed
/ˈdrɒpsiːd/noun
mass noun
1- a grass that readily drops its seeds鼠尾粟属植物。
1.1
- Genus Sporobolus, family Gramineae: several species, including the widespread North American sand dropseed (S. cryptandrus), which has a high yield of edible grain鼠尾粟属, 禾本科：数种, 包括分布广泛、食用谷粒产出量高的北美沙鼠尾粟（拉丁名S. Cryptandrus）。