Alyssum praecox Boiss. Dataset Update on the Brassicaceae Species Checklist Rank SPECIES Published in Boissier, P.E. Fl. Orient. 1: 275. (1867). Classification family Brassicaceae genus Alyssum species Alyssum praecox Name Synonyms Alyssum praecox var. albiflorum T.R.Dudley Alyssum praecox var. praecox Boiss. Alyssum pseudomontanum Hausskn. & Bornm. Homonyms Alyssum praecox Boiss.