Find the word definition

The Collaborative International Dictionary
Frankenia laevis

Sea heath \Sea" heath`\ (Bot.) A low perennial plant ( Frankenia l[ae]vis) resembling heath, growing along the seashore in Europe.

Wikipedia
Frankenia laevis

'Frankenia laevis ' commonly ' sea heath' is a low shrub that grows on coasts in Europe. It is rare in the UK.