Alyssum maritimum

from The Collaborative International Dictionary of English v.0.48
Madwort \Mad"wort`\, n. (Bot.)
   A genus of cruciferous plants ({Alyssum}) with white or
   yellow flowers and rounded pods. {Alyssum maritimum} is the
   commonly cultivated sweet alyssum, a fragrant white-flowered
   annual.
   [1913 Webster]
    
from The Collaborative International Dictionary of English v.0.48
Alyssum \A*lys"sum\ ([.a]*l[i^]s"s[u^]m), n. [NL., fr. Gr.
   'a`lysson, name of a plant, perh. fr. 'a priv. + ly`ssa
   raging madness.] (Bot.)
   A genus of cruciferous plants; madwort. The {sweet alyssum}
   ({Alyssum maritimum}), cultivated for bouquets, bears small,
   white, sweet-scented flowers.
   [1913 Webster]
    

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