Thorns, spines, and prickles

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A topic known well beyond its field, found in many languages.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

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Notion

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Science and technology

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What Wikipedia says

In plant morphology, thorns, spines, and prickles, and in general spinose structures (sometimes called spinose teeth or spinose apical processes), are hard, rigid extensions or modifications of leaves, roots, stems, or buds with sharp, stiff ends, and generally serve the same function: physically defending plants against herbivory.

Excerpt from the Wikipedia article “Thorns, spines, and prickles”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: NorbertR., Public domain, via Wikimedia Commons.