Ipomoea purpurea (weed)
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Ipomoea purpurea (L.) Roth. - (tall morningglory)
This plant is widely distributed around the world, mainly in tropical and subtropical areas. It can be a serious agricultural weed, affecting crops like cotton, sugarcane, maize/corn, soybean and groundnut. It also grows on roadsides and waste land. I. purpurea has been reported to harbour various crop diseases.
The seeds germinate in spring and summer. Flowering starts about 4-6 weeks later and continues until the first frost. One plant can produce up to 8,000 seeds per year.