Limonium ramosissimum, Algerian sealavender is a species of Limonium (Sea-Lavender), native to the mediterranean, which has escaped cultivation and become an invasive species

Invasive species

"Invasive species", or invasive exotics, is a nomenclature term and categorization phrase used for flora and fauna, and for specific restoration-preservation processes in native habitats, with several definitions....

 in salt marshes of California

Ecological characteristics

Limonium ramosissimum has the ability to tolerate a wide range of salt levels in the soil (salinity) and also has the ability to actively lower the soil salinity by taking up and excreting salt through glands in the inflorescence

Inflorescence

An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Strictly, it is the part of the shoot of seed plants where flowers are formed and which is accordingly modified...

 which are then free to break off and blow away. This could have the effect of changing the species composition of an area by reducing salinity in the soil.
These plants are also very fecund, producing lots of seed, and are also able to compete with native flora.