Stems: erect, six to eighteen inches high. Leaves: large, long-petioled, biternate and pinnate. Flowers: large, solitary; petals none; sepals five to seven. Fruit: carpels with long filiform styles that become plumose tails to the achenes.
The Chalice Cup is one of the most beautiful of the early spring mountain flowers. Its handsome white blossoms, purple-shaded on the outside, may be found growing close to the retreating line of snow during the months of May and June, and later on in the season its big fluffy seed-heads are eagerly gathered by those who delight in artistic things. This plant, like many others of the Crowfoot Family, has no petals, only a lovely calyx fashioned into about six sepals, which do duty instead.
Chalice Cup (Anemone occidentalis)