Japanese knotweed near the Skykomish

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Star Tales - Perseus (ianridpath.com) Perseus (Περσεύς in Greek) is one of the most famous Greek heroes. The characters in his story are represented by six constellations that occupy a substantial part of the sky. The constellation depicting Perseus lies in a prominent part of the Milky Way, which is perhaps why Aratus termed him ‘dust-stained’.

Reynoutria japonica (wikipedia.org) Reynoutria japonica, synonyms Fallopia japonica and Polygonum cuspidatum, is a species of herbaceous perennial plant in the knotweed and buckwheat family Polygonaceae. Common names include Japanese knotweed and Asian knotweed. It is native to East Asia in Japan, China and Korea. In North America and Europe, the species has successfully established itself in numerous habitats, and is classified as a pest and invasive species in several countries.