Needle rush is a common plant species that typically grows near water or in wetlands. It is also known as Juncus effusus, and it produces a thin, pointed stem with needle-like foliage. There are several synonyms for needle rush, including bog rush, soft rush, and common rush. Bog rush refers to the plant's affinity for wetlands or boggy areas, while soft rush is used to describe the plant's flexible stems that don't easily break. Common rush is another term used to describe this versatile plant, as it is found throughout the world in various habitats. Whatever you call it, needle rush is an important plant that provides numerous ecological benefits.