▁was ▁then ▁first ▁published ▁and ▁described ▁by ▁John ▁Bell enden ▁Ker ▁G aw ler ▁in ▁the ▁Botan ical ▁Magazine ▁Issue ▁ 3 6 ▁of ▁ 1 8 1 2 . ▁It ▁was ▁later ▁published ▁in ▁' Add ison ia ' ▁Issue ▁ 1 2 ▁on ▁March ▁ 1 9 2 7 ▁with ▁colour ▁illustr ations . ▁ ▁John ▁James ▁Aud ub on ▁illustrated ▁a ▁pair ▁of ▁Northern ▁Par ulas ▁in ▁Bird s ▁of ▁America , ▁( pub lished , ▁London ▁ 1 8 2 7 – 3 8 ), ▁Pl ate ▁ 1 5 ▁entitled ▁" Blue ▁Y ellow - back ed ▁War b ler ▁– ▁Syl via ▁amer icana ". ▁The ▁birds ▁are ▁shown ▁per ched ▁on ▁a ▁Louisiana ▁Flag ▁( I ris ▁ful va ) ▁painted ▁by ▁his ▁assistant ▁Joseph ▁Mason ▁to ▁which ▁Aud ub on ▁added ▁the ▁two ▁birds ▁in ▁ 1 8 2 1 . ▁This ▁led ▁to ▁a ▁group ▁of ▁I ris es ▁in ▁Louisiana ▁known ▁as ▁the ▁" Louis iana ▁I ris es ". ▁ ▁It ▁was ▁verified ▁by ▁United ▁States ▁Department ▁of ▁Agricult ure ▁and ▁the ▁Agricult ural ▁Research ▁Service ▁on ▁ 4 ▁April ▁ 2 0 0 3 , ▁and ▁then ▁updated ▁on ▁ 1 ▁December ▁ 2 0 0 4 . ▁I ris ▁ful va ▁is ▁also ▁an ▁accepted ▁name ▁by ▁the ▁R HS ▁and ▁it ▁has ▁been ▁awarded ▁with ▁the ▁Award ▁of ▁Garden ▁Mer it . ▁ ▁Distribution ▁and ▁habitat ▁ ▁It ▁is ▁native ▁to ▁North ▁America . ▁ ▁Range ▁I ris ▁ful