[Members of the Sunflower Family in the Cascade Mt. Range with Discoid Flower Heads]
The Thistles of the Cascade Mountains of Oregon and Washington

The Genus Cirsium

Mountain Thistle: Cirsium remotifolium ?

This photo shows the involucral bracts and flower head of what appears to be mountain thistle (Cirsium remotifolium var. ?) as seen along Coyote Creek Road in the Umpqua National Forest...................June 25, 2005.

Canada Thistle, Creeping Thistle: Cirsium arvense -

Short-styled Thistle, Clustered Thistle: Cirsium brevistylum -

Ashland Thistle: Cirsium ciliolatum -

Gray-green Thistle: Cirsium cymosum var. canovirens -

Edible Thistle, Indian Thistle: Cirsium edule var. edule -

Cayuse Thistle, Edible Thistel: Cirsium edule var. macounii -

Snowy Thistle, Snowwool Thistle: Cirsium occidentale var. candidissimum -

Mountain Thistle, Fringe-bract Thistle: Cirsium remotifolium var. odontolepis (formerly Cirsium callilepis var. oregonense) -

Rew-leaved Thistle, Weak Thistle: Cirsium remotifolium var. remotifolium - ?

Bull Thistle, Common Thistle: Cirsium vulgare -

Paul Slichter E-mail