ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷ noun
1. : a small troublesome weed ( Diodia teres ) with linear leaves and small flowers and fruits resembling buttons
2. : any of several plants of the genus Spermacoce (family Rubiaceae) of similar appearance to buttonweed
3. : indian mallow 1
4. : knapweed
5. : clustered bluet