Spring cleavers refer to a type of plant that is known for its ability to cling to clothing or other materials with its hooked bristles. This plant is also known as sticky willy, sticky weed, goosegrass, and catchweed. The term "spring cleavers" refers to the plant's tendency to grow rapidly in the springtime and to be easily cleaved or broken from the ground. Other synonyms for spring cleavers include bedstraw, burweed, velcro weed, and coachweed. Spring cleavers are considered a nuisance by many gardeners and landscapers due to their invasive nature and the difficulty in removing their sticky seeds and bristles from clothing and equipment.