About
葶 is a phono-semantic compound that pairs the semantic radical 艹 (grass, vegetation) with the phonetic element 亭 (pavilion). It names a cruciferous plant found almost solely in the compound 葶苈 (Draba nemorosa), a herb whose seeds have traditionally been used to relieve respiratory ailments, reduce swelling, and alleviate coughing. The character functions as a bound morpheme with no independent use or broader agricultural meaning, restricted to this specific medicinal and botanical context.
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