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sensitive fern
noun
- a common, widely distributed fern, Onoclea sensibilis, having large, triangular leaves and beadlike spikes that contain the spores.
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Word History and Origins
Origin of sensitive fern1
An Americanism dating back to 1805–15; so called from the sensitivity of its foliage to frost
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Example Sentences
The sensitive fern is so called from its being very sensitive to frost.
From Project Gutenberg
Not to mention, among inferior orders, wool-grass and the sensitive fern.
From Project Gutenberg
In the midst of the marsh were rows of the fruit-stems of the sensitive fern, which is the first to blacken before the frost.
From Project Gutenberg
Onoclea sensibilis (sensitive fern), very common along the riversides; some on the gravelly shore of Heron Lake Island.
From Project Gutenberg
As in the sensitive fern there are many curious gradations between the fertile and sterile fronds, both in shape and fruitfulness.
From Project Gutenberg
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