/ Dictionary / Index S Siberian wallflower: Meaning and Definition of Find definitions for: Sibe'rian wall'flower Pronunciation: [key] a North American plant, Erysimum asperum, of the mustard family, having orange-yellow flowers. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Siberian squill siberite Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language