Definition of water marigold in English:

water marigold

noun

1Marsh marigold, Caltha palustris, or any of several other plants of the genus Caltha (now rare).
2A yellow-flowered aquatic bur marigold of North America, Bidens beckii, which is highly sensitive to water pollution and hence used as an indicator species.

Early 19th century; earliest use found in John Sinclair (1754–1835), agricultural improver, politician, and codifier of ‘useful knowledge’.

noun

1Marsh marigold, Caltha palustris, or any of several other plants of the genus Caltha (now rare).
2A yellow-flowered aquatic bur marigold of North America, Bidens beckii, which is highly sensitive to water pollution and hence used as an indicator species.

Early 19th century; earliest use found in John Sinclair (1754–1835), agricultural improver, politician, and codifier of ‘useful knowledge’.

词汇	water marigold
释义	Definition of water marigold in English: water marigold noun 1Marsh marigold, Caltha palustris, or any of several other plants of the genus Caltha (now rare). 2A yellow-flowered aquatic bur marigold of North America, Bidens beckii, which is highly sensitive to water pollution and hence used as an indicator species. Origin Early 19th century; earliest use found in John Sinclair (1754–1835), agricultural improver, politician, and codifier of ‘useful knowledge’. Definition of water marigold in US English: water marigold noun 1Marsh marigold, Caltha palustris, or any of several other plants of the genus Caltha (now rare). 2A yellow-flowered aquatic bur marigold of North America, Bidens beckii, which is highly sensitive to water pollution and hence used as an indicator species. Origin Early 19th century; earliest use found in John Sinclair (1754–1835), agricultural improver, politician, and codifier of ‘useful knowledge’.
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