Eating instead of managing it?–a systematic literature review on potential uses of creeping thistle as food and medicinal plant

Abstract

Creeping thistle, Cirsium arvense (L.) Scop, is one of the most common weeds in temperate climates. Frequently classified as an invasive species, it is the cause of massive herbicide and tillage use. Especially in organic systems, the plant is hard to manage. Little is known about creeping thistle being entirely edible and having diverse medicinal properties. Additionally, it has potential to be used as food preservative and provides essential ecosystem services. This systematic literature review provides evidence of creeping thistle uses from 56 peer-reviewed journals and 37 popular media references. It discusses potential uses and phytochemical properties of specific plant parts. Findings identify the stem as the most promising part for food use. Creeping thistle has elevated flavonoid (flower) and inulin (root) contents, with anti-inflammatory, antioxidant, and anti-diabetic properties respectively. The discussion contrasts the potential of creeping thistle of becoming a multi-purpose crop with its classification as a noxious weed.