Sainfoin

from WordNet (r) 3.0 (2006)

sainfoin
    n 1: Eurasian perennial herb having pale pink flowers and curved
         pods; naturalized in Britain and North America grasslands
         on calcareous soils; important forage crop and source of
         honey in Britain [syn: {sainfoin}, {sanfoin}, {holy
         clover}, {esparcet}, {Onobrychis viciifolia}, {Onobrychis
         viciaefolia}]

from The Collaborative International Dictionary of English v.0.48

Sainfoin \Sain"foin\ (?; 277), n. [F., fr. sain wholesome (L.
   sanus; see {Sane}.) + foin hay (L. faenum); or perh. fr.
   saint sacred (L. sanctus; see {Saint}) + foin hay.] (Bot.)
   (a) A leguminous plant ({Onobrychis sativa}) cultivated for
       fodder. [Written also {saintfoin}.]
   (b) A kind of tick trefoil ({Desmodium Canadense}). [Canada]
       [1913 Webster]