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Any of various plants of the genera Hackelia and Lappula, having small barbed fruits that cling to clothing or fur.
(Plants) any of various Eurasian and North American plants of the boraginaceous genus Lappula, having red-and-blue flowers and small prickly fruits. Also called: beggar's-lice
[C19: from stick2; so called because its seeds have adhesive hooks on them]
1. any weedy plant of the genus Lappula, of the borage family, having prickly seeds that adhere to clothing.
2. any of various other plants with sticky seeds or fruits.