This section is from the book "Wild Flowers Of The North American Mountains", by Julia W. Henshaw. Also available from Amazon: Wild Flowers of the North American Mountains.
Stems: somewhat pubescent. Leaves: quinate to quinate-ternate, leaflets oblong, acute, incisely lobed and trifid. Flowers: in paniculate corymbs. Fruit: achenes pubescent.
The White Clematis has open clusters of rather small flowers composed of five thin silky petaloid sepals, oblong lobed leaves, and handsome plumose seed-heads. This climbing plant is usually found along the banks of the alpine streams.
 
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