Voters in Mississippi have approved a new state flag that will feature the magnolia flower, months after the southern state retired its old banner bearing a Confederate battle emblem.
Mississippi's flag was the last in the US to include a symbol of the Confederacy, a collection of southern states where slavery was legal and that seceded from the union in 1860.
Many African-Americans believe the flag carries racist connotations, while white southerners argue it is a symbol of southern heritage.
US media reported that Mississippi voters had backed the flag's new design, which also will carry the words "In God We Trust".
The old flag was retired over the summer, as the US erupted with the biggest protests in decades against racism and police brutality.
The ongoing movement for racial justice in the US also prompted the removal of statues of Confederate figures, either formally removed by local governments or forcibly toppled by protesters.
Meanwhile, Oregon has became the first US state to decriminalise hard drugs, including the possession of small amounts of heroin and cocaine, and to legalise access to "magic mushrooms" for therapeutic use.
Some other states, including Arizona and Montana, meanwhile appeared poised in early results to legalise recreational marijuana in line with a trend sweeping the country in recent years.
A ballot initiative in favour of decriminalising a range of psychedelics was also approved in Washington DC, the fourth jurisdiction to enact the reform.
Votes on those measures came as Americans cast their ballots in the US presidential election.
Under Measure 110, possession of small amounts of illicit drugs in Oregon would be considered a civil violation and more money will be earmarked for addiction treatment and other services for people with addiction disorders.
"This groundbreaking initiative imagines a better way forward - instead of arresting and jailing people for drugs, it will offer help to those who need and want it," the Drug Policy Alliance said in a statement.
The aim of the measure is to keep drug-addicted people out of the criminal justice system and to provide them with treatment.
It was backed by the Oregon Nurses Association, the Oregon chapter of the American College of Physicians and the Oregon Academy of Family Physicians.
"Punishing people for drug use and addiction is costly and hasn't worked. More drug treatment, not punishment, is a better approach," the groups said in a statement.
Also backing the measure was Facebook founder Mark Zuckerberg and his wife Priscilla Chan who contributed $500,000 through the Chan Zuckerberg Initiative.