Wetland I.D. Guide - Island County Government
Wetland I.D. Guide - Island County Government
Wetland I.D. Guide - Island County Government
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non-native Vegetation<br />
Bull Thistle – Cirsium vulgare<br />
general: Spiny, toothed leaves and spines on stems. Pink-purple prickled flowers are 2 to 4<br />
cm long and longer than those of Canadian Thistle. Is rooted with a fleshy taproot.<br />
Where Found: Fields, pastures, meadows, clearings and roadsides. Common in agricultural areas.<br />
Ben Legler Ben Legler<br />
Himalayan Blackberry – Rubus procerus or Rubus discolor or Rubus armeniacus<br />
general: This plant forms dense impenetrable thickets with branches most notably<br />
covered in sharp thorns. Green leaves are present year round and have three or five lobes.<br />
Produces edible berries in late summer.<br />
Where Found: Disturbed sites and can dominate wetlands.<br />
Canadian Thistle – Cirsium arvense<br />
general: Spiny, toothed leaves, and prickles on pink-purple flowers. Flowers are 1 to 2 cm long<br />
and smaller than those of Bull Thistle. Grows via creeping rhizomes.<br />
Where Found: Fields, pastures, meadows, clearings and roadsides. Common in agricultural<br />
areas.<br />
Ben Legler<br />
19<br />
Field Indicators<br />
Moderate<br />
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Moderate<br />
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Poor<br />
Ben Legler