Troels Myndel Pedersen

Pfaffia glomerata is a medicinal plant native to Argentina, Bolivia. Cerrado, and Pantanal in Brazil. Pfaffia glomerata is considered an aphrodisiac, potentially due to the presence of β-ecdysone in its roots. This steroid is thought to influence libido. Pfaffia glomerata contains gallic acid, pfaffic acid, glomeric acid, oleanolic acid, saponins, anthraquinones, tannins, flavonoids, rubrosterone, and ecdysterone, in addition to primary metabolites such as inulin-type fructans and fructooligosaccharides.

Hebanthe erianthos (many synonyms, including Iresine erianthos and Pfaffia paniculata), known as suma or Brazilian ginseng, is a species of plant in the family Amaranthaceae. The specific epithet is also spelt "eriantha", although the basionym is Iresine erianthos. The root of this rambling ground vine found in South America is used traditionally as a medicine and tonic. Nicknamed "para tudo" in Brasil, which means "for everything", suma is a traditional herbal medicine. The root contains phytochemicals including saponins (pfaffosides).

Lecosia is a genus of flowering plants belonging to the family Amaranthaceae. Its native range is Eastern Brazil. Species: Lecosia formicarum Pedersen Lecosia oppositifolia Pedersen

Quaternella is a genus of flowering plants in the amaranth family Amaranthaceae, endemic to Brazil. They are shrubs or subshrubs found mostly in the cerrado biome.

Hebanthodes is a monotypic genus of flowering plants belonging to the family Amaranthaceae. The only species is Hebanthodes peruviana. Its native range is Peru.

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Cyperus grossianus is a species of sedge that is native to parts of Brazil.

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Siamosia thailandica is a species of flowering plant in the amaranth family, Amaranthaceae. It is the sole species in genus Siamosia. It is endemic to Thailand.

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Xerosiphon aphyllus is a flowering plant in the amaranth family (Amaranthaceae). It is native to Brazil.