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Forest Health-paths/invasives > Invasives > Flashcards

Invasives Flashcards

1
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Spotted Knapweed

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2
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St Johns wort

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3
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Curled Dock

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4
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Common Tansy

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5
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Canada Thistle

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6
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Black locust

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7
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Bull Thistle

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8
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Mullein

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9
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Hoary Alyssum

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10
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Hounds tongue

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11
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Dalmation toadflax

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12
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Chicory

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13
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oxeye daisy

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14
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HImalayan blackberry

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15
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japanese knotweed

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16
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sulphur cinquefoil

17
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Burdock

18
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General Info about invasives

shade tolerance?

preferred sites?

reproductive strategies?(3)

Introduced from ?

A

most are fairly shade intolerant-like open areas with lots of sun

most prefer disturbed seedbeds

All have very effective reproductive strategies, including:

  • produce lots of seeds that can travel great distances
  • bank seed in soil for many years
  • some are perennial plants with extensive rhizomes

many intro’d from europe/asia without natural control agents

Forest Health-paths/invasives (2 decks)

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