Sargassum herbaceum Kützing, 1849: 607 (type locality: Karek [Kharg] Island, Iran).—Kützing, 1861: 1, pl. 2: fig. II.— Grunow, 1916 [1915–1916]: 25–26.
Carpacanthus herbaceus (Kützing) G. Martens, 1868: 27, 78–79.
INDIAN OCEAN DISTRIBUTION: Indonesia (Sumatra), Iran.