I found a four-leaved clover in the garden.

I found four-leaved clovers in the field.

I found a four-leafed clover in the garden.

I found four-leafed clovers in the garden.

Sub clovers are commonly used as a cover crop.

Subterranean clover is a type of legume that is commonly used as a forage crop.

Sub clover is a type of legume that is commonly used as a forage crop.

Subterranean clovers are commonly used as cover crops.

The clovetree is a tropical plant that produces aromatic flower buds called cloves.