Invasives

• Purple Loosestrife?

  Noxious weed invasive of wetlands, was native to Eurasia

  
• Purple Loosestrife?

  Produces 3 million seeds per plants and lacks natural predators. Beetles are used as a natural control

  
• Kudzu?

  Legume family, native to Asia

  
• Kudzu?

  Noxious weed introduced into Philadelphia, spreads by runners, rhizomes, and vines.

  
• Mile-a-minute?

  Introduced into PA, Native to India and Asia

  
• Mile-a-minute?

  Grows 6 inches a day and produces many seeds

  
• Asiatic Bittersweet?


  Native to Asia, introduced as an ornamental plant

  
• Asiatic Bittersweet?

  Strangles shrubs and trees, produced by solons and rhizomes

  
• Japanese Stilt Grass?

  Native to Asia and India, used to be used as packing material

  
• Japanese Stilt Grass?

  Spreads by rooting of stems. One plant produces up to 1000 seed

  
• Japanese Barberry?

  Native to Japan, was an ornamental and was resistant to wheat rust

  
• Japanese Barberry?

  Out competes native species and is a habitat for ticks

  Spread by birds

  
• Japanese Barberry?

  Grows in forests, wetlands, pastures, and fields