Complete the sentence about Silver fern with the correct year: The species was moved to the genus Cyathea by Olof Swartz in ______, leading to the scientific name Cyathea dealbata.

Answer and explanation

Correct answer: C. 1801

The species was moved to the genus Cyathea by Olof Swartz in 1801, giving the scientific name Cyathea dealbata. It had been named Polypodium dealbatum.

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