{"id":238,"date":"2023-05-11T11:10:58","date_gmt":"2023-05-11T15:10:58","guid":{"rendered":"https:\/\/web.uri.edu\/biocontrol-draft\/?page_id=238"},"modified":"2024-09-13T11:13:34","modified_gmt":"2024-09-13T15:13:34","slug":"mile-a-minute-vine","status":"publish","type":"page","link":"https:\/\/web.uri.edu\/biocontrol\/projects\/mile-a-minute-vine\/","title":{"rendered":"Mile-a-Minute Vine"},"content":{"rendered":"\n
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The Mile-a-minute vine (Persicaria perfoliata<\/em>), which is related to native \u201ctearthumb\u201d (Persicaria sagittata<\/em>), is an aggressively growing invasive annual vine native to Eastern Asia. Mile-a-minute was first found in the United States in Portland, Oregon in the 1890s and was later found in the late 1930s in Maryland and Pennsylvania. Since its introduction it has spread throughout most of the Northeastern United States and as far south as North Carolina. Mile-a-minute vine is distinctive for its triangular leaves, flat ocrea (bracts) and recurved prickles that grow along its stem and leaf veins.<\/p>\n\n\n\n

Mile-a-minute has the ability to grow up to 6\u2033 per day totaling approximately 20\u2032 per season; forming dense mats of intertwining stems and leaves which grow over, shade, and smother nearby plants.<\/p>\n\n\n\n

Seeds begin to germinate in early spring (late April to early May). Midsummer the plant begins to produce clusters flowers at the tip that will produce achenes, which are berry-like structures containing seeds (approx. 200-500 seeds per 0.5m2<\/sup>) (Hough-Goldstein et al. 2008), which initially are a pale green turning to a deep purple as they mature. These seeds can last for up to 6 years in the soil and can be easily dispersed by birds and water.<\/p>\n<\/div>\n\n\n\n

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