WordNet (r) 3.0 (2006):

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]