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Name: Toni
Denver Metro (Zone 5a)
Whiskey Tango Foxtrot.
Charter ATP Member Irises Salvias Xeriscape Birds I was one of the first 300 contributors to the plant database!
Garden Ideas: Master Level Garden Procrastinator The WITWIT Badge Region: Colorado Enjoys or suffers cold winters Cat Lover
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Skiekitty
May 29, 2014 9:06 AM CST
Get this as a major weed here in our area of Colorado.. whenever I pull it, I have to wear thick gloves otherwise I get stabbed and it HURTS.. plus my hand, where it got stabbed, will swell up & be all red & painful for a while.
Roses are one of my passions! Just opened, my Etsy shop (to fund my rose hobby)! http://www.etsy.com/shop/TweetsnTreats
Name: Kent Pfeiffer
Southeast Nebraska (Zone 5b)
Charter ATP Member I was one of the first 300 contributors to the plant database! Plant Database Moderator Plant Identifier Region: Nebraska Forum moderator
Garden Sages Garden Ideas: Master Level Irises Celebrating Gardening: 2015
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KentPfeiffer
May 29, 2014 9:21 AM CST

Plants Admin

Are you sure your plant is wavyleaf thistle? There are a lot of thistle species, many of which are considered to be weeds, but wavyleaf isn't particularly weedy. Wavyleaf is a rhizomatous perennial so you wouldn't get any roots when pulling it up (it would also be futile to pull it).

Thistles don't produce toxins in their spines. However, the spines do have tiny barbs, so once they penetrate your skin, they do a lot of damage as you pull them out. The damage stimulates an inflammation reaction from your body (the swelling, redness, and pain).
Name: Toni
Denver Metro (Zone 5a)
Whiskey Tango Foxtrot.
Charter ATP Member Irises Salvias Xeriscape Birds I was one of the first 300 contributors to the plant database!
Garden Ideas: Master Level Garden Procrastinator The WITWIT Badge Region: Colorado Enjoys or suffers cold winters Cat Lover
Image
Skiekitty
May 29, 2014 9:40 AM CST
Kent - I honestly have no idea which kind of thistles we have here at we have at least 3-4 different kinds. But the leaves look VERY much so like the ones you posted. And I noticed are a bit more of a greyish in color. But they do have wavy leaves in addition to a bazillion barbs and thorns & ouchies & yuck. And it *is* very futile in pulling them up and they seem to drink RoundUp as if it was KoolAid. Thumbs down Thumbs down Thumbs down
Roses are one of my passions! Just opened, my Etsy shop (to fund my rose hobby)! http://www.etsy.com/shop/TweetsnTreats
Name: Toni
Denver Metro (Zone 5a)
Whiskey Tango Foxtrot.
Charter ATP Member Irises Salvias Xeriscape Birds I was one of the first 300 contributors to the plant database!
Garden Ideas: Master Level Garden Procrastinator The WITWIT Badge Region: Colorado Enjoys or suffers cold winters Cat Lover
Image
Skiekitty
May 29, 2014 11:46 AM CST
Here's a sample of what I'm talking about. Ouchtime.

Thumb of 2014-05-29/Skiekitty/b6b515 Thumb of 2014-05-29/Skiekitty/f7ea50 Thumb of 2014-05-29/Skiekitty/00d981

Roses are one of my passions! Just opened, my Etsy shop (to fund my rose hobby)! http://www.etsy.com/shop/TweetsnTreats
Name: Kent Pfeiffer
Southeast Nebraska (Zone 5b)
Charter ATP Member I was one of the first 300 contributors to the plant database! Plant Database Moderator Plant Identifier Region: Nebraska Forum moderator
Garden Sages Garden Ideas: Master Level Irises Celebrating Gardening: 2015
Image
KentPfeiffer
May 29, 2014 11:49 AM CST

Plants Admin

That is Scotch Thistle, certainly considered to be a weed in most of North America.

Scotch Thistle (Onopordum acanthium)
Name: Toni
Denver Metro (Zone 5a)
Whiskey Tango Foxtrot.
Charter ATP Member Irises Salvias Xeriscape Birds I was one of the first 300 contributors to the plant database!
Garden Ideas: Master Level Garden Procrastinator The WITWIT Badge Region: Colorado Enjoys or suffers cold winters Cat Lover
Image
Skiekitty
May 29, 2014 12:08 PM CST
Can we just call them all a blanket "Ouch Thistle"? LOLLLL
Roses are one of my passions! Just opened, my Etsy shop (to fund my rose hobby)! http://www.etsy.com/shop/TweetsnTreats

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