Photo: Caltha leptosepala.

Flowering stand. Mt. Hood Nat'l Forest, OR, US. Wild. 1998-06-01.
Caltha leptosepala DC. Engl.: white marsh marigold, alpine white marsh-marigold, eastern marshmarigold, elkslip, two-flowered white marsh marigold. Deu.: Amerikanische Dotterblume. Bot. syn.: Caltha biflora DC., Caltha howellii Huth
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Photo: Caltha leptosepala.