Yellow thistle: Asteraceae Cirsium pallidum

Not a particularly friendly look plant with its prickly steams and leaves, but nonetheless a handsome looking plant. We took this photo on 15 July 2004 on the Columbine Canyon to the Meadows Trail.
Overview of yellow thistle, <em>Cirsium pallidum</em>.
Botanical Characteristics:

More information and pictures:

Close-up of yellow thistle, <em>Cirsium pallidum</em>, flower.
Close-up of yellow thistle, Cirsium pallidum flowers. A bee can be seen feeding on the nectar of the upper flower. Photo taken on 15 July 2004 on the Columbine Canyon to the Meadows Trail.
Close-up of yellow thistle, Cirsium pallidum leaves. Photo taken on 15 July 2004 on the Columbine Canyon to the Meadows Trail.
Close-up of yellow thistle, <em>Cirsium pallidum</em>, leaves.
Close-up of back of the leaf of the yellow thistle, <em>Cirsium pallidum</em>.
Close-up of back of the leaf of the yellow thistle, Cirsium pallidum. Photo taken on 15 July 2004 on the Columbine Canyon to the Meadows Trail.
Close-up of the stem of the yellow thistle, Cirsium pallidum. Note the numerous hairs on the stem. Photo taken on 15 July 2004 on the Columbine Canyon to the Meadows Trail.
Close-up of the stem of the yellow thistle, <em>Cirsium pallidum</em>.

Where we have seen this plant:

Taxonomy:

References:

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