Invasives: 100 of the World's Worst Invasive Alien Species

Discussion in 'Plants: Conservation' started by Lysichiton, Oct 7, 2008.

  1. Lysichiton

    Lysichiton Active Member

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    This covers a wide variety of organisms. Prepared & published by the World Conservation Union.

    http://issg.org/worst100_species.html

    Scary reading.

    I notice my lietmotif - Japanese knotweed (Polygonum cuspidatum/Fallopia japonica etc. etc.) makes the list.

    gb
     
    Last edited by a moderator: Sep 20, 2010
  2. edleigh7

    edleigh7 Well-Known Member

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    Thanks for the link, it is a bit scary, will have more of a look when I have more time GB

    Ed
     
  3. Lysichiton

    Lysichiton Active Member

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    I found the link on the site of the Invasive Plant Council of BC which is newly renovated & improved. A good resource for Provincial gardeners, professionals & students alike.

    gb
     
  4. Ron B

    Ron B Paragon of Plants 10 Years

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    There's large choking patches of knotweed in the mountains near here, although it may be the hybrid derivative Bohemian knotweed rather than pure Japanese knotweed - I haven't looked up close.
     
  5. Lysichiton

    Lysichiton Active Member

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    Ron B...don't look at the naming & idnetification of these, unless you want a headache or an argument! JMHO. The one I have documented in this corner of the Fraser Valley, I believe to clearly be Polygonum cuspidatum. I have seen no variation in physical characteristics apart from size. Since it almost exclusively propagates vegetatively, much of the material may be genetically identical.

    I am watching a few clumps where it is duking it out with Himalayan Blackberry. Over the next couple of years I will be interested to see which one wins. No odds offered by me. Native plants don't stand a chance in that overwhelming duel..

    I also check each stand for disease & predation. If I were as healthy as this stuff, the health care providers would be out of business.

    It's sole redeeming feature in our area is that the honeybees LOVE it in Aug/Sep.

    gb
     
  6. Michael F

    Michael F Paragon of Plants Forums Moderator 10 Years

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    Not to mention, whether it's a species of Polygonum, Fallopia or Reynoutria ;-)
     
  7. Lysichiton

    Lysichiton Active Member

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    I refuse to rise to the bait!

    gb
     

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