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Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Subfamily: Asteroideae
Tribe: Gnaphalieae[1]
Genus: Hydroidea
Binomial name
Hydroidea elsiae
(Hilliard) P.O.Karis

Hydroidea is a genus of flowering plants in the sunflower family.[2][3]


There is only one known species, Hydroidea elsiae, native to South Africa.[1][4]


  1. ^ a b c Flann, C (ed) 2009+ Global Compositae Checklist
  2. ^ Karis, Per Ola. 1990. Botanical Journal of the Linnean Society 102(1): 29
  3. ^ Tropicos, Hydroidea elsiae (Hilliard) P.O. Karis
  4. ^ Gibbs Russell, G. E., W. G. M. Welman, E. Retief, K. L. Immelman, G. Germishuizen, B. J. Pienaar, M. Van Wyk & A. Nicholas. 1987. List of species of southern African plants. Memoirs of the Botanical Survey of South Africa 2(1–2): 1–152(pt. 1), 1–270(pt. 2).