white clover; Dutch clover
Refers to the plant Trifolium repens, commonly found in lawns and fields. The name 詰草 is said to come from its use as packing material in crates shipped from the Netherlands.
A lot of white clover is growing on the lawn in the park.
red clover; purple clover
lesser hop trefoil; suckling clover
hop trefoil; low hop clover
The kanji 詰 (pack) and 草 (grass) are said to originate from the historical use of dried white clover as packing material in shipping crates.