lichen
(laɪkən )
Word forms: lichens
variable noun
Lichen is a group of tiny plants that looks like moss and grows on the surface of things such as rocks, trees, and walls.
In the forest the trees are packed tightly together and lichen hangs down.
Image of lichen
© kavring, Shutterstock
Translations:
Chinese: 地衣
Japanese: 地衣類