Motif has sideways cluster stitches in round center, and popcorns and cluster defining the corners. Motifs arranged 5 x 8, followed by 3 rounds of chain loop edging.

Pattern 25 in Magic Crochet.
Pattern 4, Cubrecama blanco, in Ganchillo Artistico
Pattern 4, Peace and Love, in Crochet Monthly, #245.