Yarrow

Day 323: Common Yarrow (Achillea millefolium) can be a pest in the garden, and although it came to me in a "native wildflower" mix, this plant may be genetically distinct from our native species. Both native and non-native types are found in Washington. It comes in a wide variety of colours: white, yellow, orange and several intensities of pink. It is sometimes called Milfoil, but it is not related to the invasive aquatic weed. The misleading appellation derives from the similarity in appearance of the lacy foliage (have I mentioned how much I dislike common names?). It is sometimes used medicinally, however it is toxic to both cats and dogs. It self-seeds and establishes easily, but can be difficult to remove for that reason. As an ornamental, the white varieties leave a bit to be desired, at least in this writer's opinion.