coat flower

noun

Etymology: perhaps translation of Latin tunica; from the shape of its bracts

: a tufted spreading perennial garden herb (Tunica saxifraga) of the family Caryophyllaceae with very slender hairlike stems, narrow leaves, and small pink or pale purple flowers

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a plant, Petrorhagia saxifraga, of the pink family, native to Eurasia, having pink or white flowers in terminal branching clusters. Also called tunic flower.