Abstract:R. repens is a deep rooted perennial that is native to Eurasia. It was accidentally introduced into North America as a contaminant of seed and spread rapidly. R. repens can be a serious crop pest in its native range and elsewhere. It forms large monotypic stands that reduce diversity and degrade forage quality on rangelands. As it is allelopathic and survives under a variety of conditions, it has been become an invasive exotic wherever it is imported. It has been declared a noxious weed in 18 US states (USDA-N… Show more
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