scented fern

scented fern
    n 1: fern of eastern North America with pale green fronds and an
         aroma like hay [syn: {hay-scented}, {hay-scented fern},
         {scented fern}, {boulder fern}, {Dennstaedtia
         punctilobula}]
    2: sweetly scented African fern with narrow bipinnate fronds
       [syn: {scented fern}, {Mohria caffrorum}]
    3: common perennial aromatic herb native to Eurasia having
       buttonlike yellow flower heads and bitter-tasting pinnate
       leaves sometimes used medicinally [syn: {tansy}, {golden
       buttons}, {scented fern}, {Tanacetum vulgare}]