Bluet

имя существительное [ботаника] хоустония ([латинский язык] Houstonia caerulea)

Большой англо-русский словарь

Bluet

noun Etymology: probably from 1blue any of several perennial North American herbs (genus Hedyotis syn. Houstonia) of the madder family; especially one (Hedyotis caerulea syn. Houstonia caerulea) having tufted stems and bluish, white, or purplish flowers with yellow centers

Merriam-Webster's Collegiate Dictionary