grey (sallow), S. cinerea 灰毛柳（黄柳）
winter aconite, Eranthis hyemalis 菟葵
winter heliotrope, Petasites fragrans 香蜂斗菜
woad, Isatis tinctoria 菘蓝
wormwood, Artemisia absinthium 苦艾
yarrow, Achillea millefolium 蓍草
yellow-rattle, Rhinanthus minor 小鼻花
Yorkshire-fog, Holcus lanatus 绒毛草