Frankenia portulacaefolia.

Botanical name: 

Frankenia portulacaefolia Spreng. Frankeniaceae. Sea Heath.

St. Helena Islands. One of the few plants indigenous in the Island of St. Helena but now, J. Smith says, believed to be extinct. Balfour says the leaves were used in St. Helena as a substitute for tea.

Sturtevant's Edible Plants of the World, 1919, was edited by U. P. Hedrick.