noun (n)

• any of numerous plants of the genus Erysimum having fragrant yellow or orange or brownish flowers(noun.plant)

  source: wordnet30
• perennial of southern Europe having clusters of fragrant flowers of all colors especially yellow and orange; often naturalized on old walls or cliffs; sometimes placed in genus Erysimum(noun.plant)

  Synonym:
  cheiranthus cheiri, erysimum cheiri
  

  source: wordnet30
• remains on sidelines at social event(noun.person)

  source: wordnet30
• A perennial, cruciferous plant (Cheiranthus Cheiri), with sweet-scented flowers varying in color from yellow to orange and deep red. In Europe it very common on old walls.(noun)

  source: webster1913
• In Australia, the desert poison bush (Gastrolobium grandiflorum); -- called also native wallflower.(noun)

  source: webster1913