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Free Weed Images - Thistles

Note on large files:  Very large files may be bigger than your screen.  
Right click on any portion of the image showing and chose "save as". 

 

 

Note:   I am not an expert in the identification of plants and you should UNDER NO CIRCUMSTANCES rely upon any of these images to identify edible, toxic or medicinal plants. If I have identified a plant
inaccurately,  please let me know so that the descriptions may be corrected.  

 

Thistles are a weedy plants of Cirsium, Carduus, Echinops, Sonchus and other plant genera belonging to the Asteraceae (also known as Compositae) family.  Thistle usually refers to the Carduus and Cirsium species. 

Plants have spiny, prickly leaves.  They have showy urn-shaped dense flower heads of pink, purple, rose, white or yellow.  Some species are troublesome weeds found in agricultural areas of North America.  There are a number of species of Sow Thistles found throughout Europe.

It should be noted that some species of Globe thistles are cultivated as ornamentals and bring beauty to many gardens.

Did you know...

that the Thistle is the national emblem of Scotland?

 

Bull Thistle

Cirsium vulgare is commonly known as the "Bull Thistle, Common Thistle, Scotch or Scottish Thistle" and "Spear Thistle".  This species can grow to be 2 to 6 feet tall!  The plant has long, sharp spines on its leaves and flower heads making it impossible to touch without hand protection.  Purple flowers grow to be 4 - 7.5 cm wide.

 

Cirsium vulgare Bull Thistle purple bloom.

Bull Thistle - 1

Medium - 640 x 480  Right click on above image and chose "save as".

Large - 3456 x 4608  - Large files now only available by email request.

 

Cirsium vulgare Bull Thistle purple flower  bloom.

Bull Thistle - 2

Medium - 640 x 480  Right click on above image and chose "save as".

Large - 4608 x 3456  - Large files now only available by email request.

 

 

Cirsium vulgare Bull Thistle purple flower head.

Bull Thistle - 3

Medium - 640 x 480  Right click on above image and chose "save as".

Large - 4343 x 3258  - Large files now only available by email request.

 

 

Purple flower of bull Thistle weed.

Bull Thistle - 4
Note the stiff spines at the leaf tips.

Medium - 640 x 480  Right click on above image and chose "save as".

Large - 3456 x 4608  - Large files now only available by email request.

 

 

Sharp spikey thorns of Bull Thistle Ontario weed.

Bull Thistle - 5

Medium - 640 x 480  Right click on above image and chose "save as".

Large - 3456 x 4608  - Large files now only available by email request.

 

 

Sharp spikes of Bull Thistle flower head.

Bull Thistle - 6

Medium - 640 x 480  Right click on above image and chose "save as".

Large - 3805 x 2854  - Large files now only available by email request.

 

 

Cirsium vulgare Bull Thistle  flowerhead bract spines.

Bull Thistle - 7
Flowerhead bracts have spiny tips.

Medium - 640 x 480  Right click on above image and chose "save as".

Large - 4608 x 3456  - Large files now only available by email request.

 

 

Spines thorns of Bull Thistle weed plant.

Bull Thistle - 8

Medium - 640 x 480  Right click on above image and chose "save as".

Large - 4608 x 3456  - Large files now only available by email request.

 

 

Cirsium vulgare Bull Thistle weed plant.

Bull Thistle - 9

Medium - 640 x 480  Right click on above image and chose "save as".

Large - 3667 x 2751  -  Large files now only available by email request.

 

Cirsium vulgare Bull Thistle purple bloom.

Bull Thistle - 10

Medium - 640 x 480  Right click on above image and chose "save as".

Large - 4608 x 3456  - Large files now only available by email request.

 

Thistle Image Pages  [1]   [2]

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