clover
n. C / Un. a small plant with three round leaves on each stem. People often look for the rare four-leaf version because they believe it brings good luck.
n. a small herbaceous plant of the pea family, typically having three-lobed leaves and dense flower heads. Often associated with folklore and luck when found with four leaflets.
The field was covered in green clover.
The children spent the entire afternoon sitting in the grass, searching for a four-leaf clover to keep for good luck.
Farmers often plant clover as a cover crop because it naturally restores nitrogen to the soil, improving the health of the land for future harvests.
Uncountable when referring to the plant as a mass or ground cover; countable when referring to a specific individual plant or species.