peat moss

peat-moss的词性：
n.（名词）

1. Any of various mosses of the genus Sphagnum, growing in very wet places.
泥炭藓：一种水苔藓 属苔藓，生长在十分潮湿的地方

2. The partly carbonized remains of these plants, used as a mulch and plant food.
泥炭沼：这些植物的部分碳化的剩余物，用作护根物和植物肥料