marsh marigold or kingcup caltha palustris in flower. botanical garden, kit karlsruhe, germany, europe

angiosperm angiospermae angle antispasmodic arctica asarifolia bronchitis buttercup caltha caltheae cowflock dicot expectorant flora flower flowering foliage homapara homeopathic kingcup magnoliopsida marigold marsh marshmarigold mayflower meadowbright medicinal migraine nature neurasthenia opathi palustris plant plantae ranunculaceae ranunculales ranunculanae ranunculoideae rheumatism seed spermatophyte spermatophytina tea teas toxic tracheophyta vascular wide wildflower yellow