Errata (fixed in document v2.)
Round 7 should read: (Sl1, m1R, k3, ssk, k1, k2tog, k3, m1L) to end.
Crown yourself with willow leaves.
Once you get set up, a simple two-row repeat creates long, tapering columns and strong vertical lines that mimic the leaves you might find on a riverside path.
Pattern includes two weights:
Aran (shown in Quince & Co Osprey in Frost) DK (shown in Quince & Co Owl in Canyon and in Sweet Georgia Superwash DK in Kale Chip)