Ginkgo Leaf Lace Pattern

Pattern
Cast on a multiple of 18 stitches, plus 1
Row 1 (RS): P1, *K17, P1; rep from *.
Row 2 (WS): K1, *P17, K1; rep from *.
Row 3: P1, *K2tog, K6, Yo, K1, Yo, K6, SSK, P1; rep from *.
Row 4: K1, *SSP, P13, P2tog, K1; rep from * (multiple of 16 sts, plus 1).
Row 5: P1, *K2tog, K4, [Yo, K1] 3 times, Yo, K4, SSK, P1; rep from * (multiple of 18 sts, plus 1).
Row 6: K1, *SSP, P13, P2tog, K1; rep from * (multiple of 16 sts, plus 1).
Row 7: P1, *K2tog, K2, [Yo, K1] 7 times, Yo, K2, SSK, P1; rep from * (multiple of 22 sts, plus 1).
Row 8: K1, *SSP, P17, P2tog, K1; rep from * (multiple of 20 sts, plus 1).
Row 9: P1, *K2tog, K15, SSK, P1; rep from * (multiple of 18 sts, plus 1).
Row 10: K1, *P17, K1; rep from *.
Row 11: P1, *K17, P1; rep from *.
Row 12: Knit.
Row 13: P1, *Yo, K2tog; rep from *.
Row 14: Knit.
Rep rows 1-14.