The native species, Rhododendron macrophyllum, is hereby designated as the official flower of the state of Washington.
RCW 1.20.030
State flower.
1959 c 29 s 1; 1949 c 18 s 1; Rem
Official source: Washington State Legislature. Reproduced from public-domain Washington statutes; confirm against the official source for the current text. Not legal advice.