The Collaborative International Dictionary of English v.0.48:

Lupine \Lu"pine\, n. [L. lupinus, lupinum, apparently fr.
   lupinus belonging to a wolf, fr. lupus a wolf; perh. so
   called because it was supposed to exhaust the soil: cf. F.
   lupin. Cf. Wolf.] (Bot.)
   A leguminous plant of the genus Lupinus, especially
   Lupinus albus, the seeds of which have been used for food
   from ancient times. The common species of the Eastern United
   States is Lupinus perennis. There are many species in
   California.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Lupine \Lu"pine\, a. [See Lupine, n.]
   Wolfish; ravenous. --Gauden.
   [1913 Webster]

WordNet (r) 3.0 (2006):

lupine
    adj 1: of or relating to or characteristic of wolves
    n 1: any plant of the genus Lupinus; bearing erect spikes of
         usually purplish-blue flowers [syn: lupine, lupin]

Moby Thesaurus II by Grady Ward, 1.0:

22 Moby Thesaurus words for "lupine":
   all-devouring, all-engulfing, bloodsucking, canine, doggy,
   extortionate, foxlike, foxy, grabby, grasping, parasitic,
   predacious, predatory, rapacious, raptorial, ravening, ravenous,
   sharkish, vulpine, vulturine, vulturous, wolfish