Species: ~ 10
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Acanthospermum australe (Loefl.) Kuntze (1891) - Brazil
syn.: Acanthospermum brasilum Schrank
Acanthospermum hirsutum DC.
Acanthospermum xanthioides (Kunth) DC.
Centrospermum xanthioides Kunth
Melampodium australe Loefl.
- Acanthospermum brachyceratum S.F.Blake (1922) - Galapagos Islands, Ecuador
- Acanthospermum consobrinum S.F.Blake (1921) - Paraguay, Southern South America
- Acanthospermum donii S.F.Blake (1921) - Ecuador, Western South America
- Acanthospermum brasilum Schrank - Brazil = Acanthospermum australe (Loefl.) Kuntze
- Acanthospermum hispidum DC. (1836) - Brazil, Bahia
- Acanthospermum humile (Sw.) DC. - Western India = Melampodium humile Sw.
- Acanthospermum humile var. normale Kuntze (1891) - Colón, Panama, Central America, Southern America
- Acanthospermum lecocarpoides B.L.Rob. & Greenm. (1895) - Galapagos Islands, Ecuador
- Acanthospermum leptolobum S.F.Blake (1922) - Galapagos Islands, Ecuador
- Acanthospermum microcarpum B.L.Rob. (1902) - Galapagos Islands, Ecuador
- Acanthospermum simile S.F.Blake (1921)
- Acanthospermum xanthioides (Kunth) DC. - Brazil = Acanthospermum australe (Loefl.) Kuntze
- Acanthospermum xanthioides var. acutifolium DC (1836) - Venezuela, Northern South America
- Acanthospermum xanthioides var. glabratum DC. (1836) - Rio de Janeiro, Brazil
- Acanthospermum xanthioides var. obtusifolium DC. (1836) - Brazil, South America
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