tree lupine: evergreen shrub of the Pacific coast of the United States having showy yellow or blue flowers; naturalized in Australia
shrub: a low woody perennial plant usually having several major stems
prednisone: a dehydrogenated analogue of cortisol (trade names Orasone or Deltasone or Liquid Pred or Meticorten); used as an anti-inflammatory drug in the treatment of arthritis and as an immunosuppressant