The Asclepiadoideae are a subfamily of plants in the family Apocynaceae. Formerly, they were treated as a separate family under the name Asclepiadaceae, e.g. by APG II, and known as the milkweed family.
Poa flabellata, commonly known as tussac grass or just tussac, is a tussock grass native to southern South America, the Falkland Islands, South Georgia and other islands in the South Atlantic. There are also two isolated records from the herbarium at the French Muséum national d'histoire naturelle for the Île Amsterdam in the Indian Ocean.
Araujia odorata, formerly known as Morrenia odorata, the latexplant or strangler vine, is a plant in the family Apocynaceae, which is native to South America. This plant is cited in Flora Brasiliensis by Carl Friedrich Philipp von Martius. The species is widely cultivated as an ornamental.
Oxypetalum is a genus of flowering plants in the family Apocynaceae, first described with this name in 1810. The genus is native to South America.
Araujia is a small genus of perennial vines in the dogbane family first described as a genus in 1817. The group is native to South America.
Bidens laevis is a species of flowering plant in the daisy family known by the common names larger bur-marigold and smooth beggarticks. It is native to South America, Mexico, and the southern and eastern United States. It grows in wetlands, including estuaries and riverbanks.
Oplismenopsis is a genus of South American plants in the grass family. The only known species is Oplismenopsis najada, native to southern Brazil, Uruguay, and northeastern Argentina.
Urmenetea is a genus of South American plants in the family Asteraceae.
Pachylaena is a genus of South American flowering plants in the tribe Mutisieae within the family Asteraceae.
Rubus ulmifolius is a species of wild blackberry known by the English common name elmleaf blackberry or thornless blackberry and the Spanish common name zarzamora. It is native to Europe and North Africa, and has also become naturalized in parts of the United States, Australia, and southern South America.
Bidens triplinervia is a Latin American species of flowering plants in the sunflower family. It is native to Mesoamerica and South America, from Chihuahua State in northern Mexico to Jujuy Province in northern Argentina.
Fischeria is a plant genus in the family Apocynaceae, first described as a genus in 1813. It is native to South America, Central America, southern Mexico, and the West Indies.
Morrenia is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1838. It is native to South America.
Macroscepis is a genus of plants in the family Apocynaceae, first described as a genus in 1819. It is native to Latin America and the West Indies.
Chevreulia is a genus of plants in the family Asteraceae, described as a genus in 1817.
Cotula mexicana, also known as Mexican brassbuttons, is a plant species in the sunflower family. It is widespread in South America and also found in central Mexico and parts of the United States.
Elephantopus mollis, common names tobacco weed, and soft elephantsfoot, is a tropical species of flowering plant in the family Asteraceae.
Tagetes campanulata is a South American species of plants in the family Asteraceae. It is found in Argentina and Bolivia.
Flaveria bidentis, the coastal plain yellowtops, is a South American plant species of Flaveria within the family Asteraceae. It is native to South America, and naturalized in many places.
Nélida María Bacigalupo (1924–2019) was an Argentine botanist, curator, and professor. She studied at the National University of La Plata, and in 1953, she received her doctorate in Natural Sciences at the same university. She served as an investigator at the Instituto de Botánica Darwinion, San Isidro, Buenos Aires. Bacigalupo did her botanical research in Paraguay and Argentina. She was a world authority on the family Rubiaceae. She was a member of the Argentine Botanical Society, and was the honorary vice-president of the 33rd Argentine Botany Conference in 2011.
