https://pfaf.org/user/Plant.aspx?LatinName=Iris+pseudacorus
Iris pseudacorus is a PERENNIAL growing to 1.5 m (5ft) by 2 m (6ft) at a medium rate. See above for USDA hardiness. It is hardy to UK zone 5 and is not frost...
iris pseudacorusyellow flagplant databasepfaf
https://www.usgs.gov/publications/phenotypic-trait-differences-between-iris-pseudacorus-native-and-introduced-ranges
AimTidal wetlands are greatly impacted by climate change, and by the invasion of alien plant species that are being exposed to salinity changes and longer...
phenotypic traitiris pseudacorusdifferencesnativeintroduced