TUFT

noun

1. A bunch of feathers, grass or hair, etc., held together at the base.
2. A cluster of threads drawn tightly through upholstery, a mattress or a quilt, etc., to secure and strengthen the padding.
3. A small clump of trees or bushes.

verb

1. To provide or decorate with a tuft or tufts.
2. To form into tufts.
3. To secure and strengthen (a mattress, quilt, etc.) with tufts.