z729949271's Identifications
Photos / Sounds
What
Flodman's Thistle (Cirsium flodmanii)Observer
knri_socialmediaDescription
Canada Thistle has become the most wide spread invasive weed in North Dakota.
Long lived perennial with an extensive root system that can grow laterally 12-15 feet per year.
Leaves are oblong, usually deeply cut and have spiny-toothed edges.
Flowers range from purple to rose and sometimes white. Male and female flowers are produced on different plants.
Canada thistle was listed in 1885 by Dakota Territory as "required of every person to destroy this weed."
Photos / Sounds
What
Flodman's Thistle (Cirsium flodmanii)Observer
knri_socialmediaDescription
Canada Thistle has become the most wide spread invasive weed in North Dakota.
Long lived perennial with an extensive root system that can grow laterally 12-15 feet per year.
Leaves are oblong, usually deeply cut and have spiny-toothed edges.
Flowers range from purple to rose and sometimes white. Male and female flowers are produced on different plants.
Canada thistle was listed in 1885 by Dakota Territory as "required of every person to destroy this weed."
Stats
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