Flora of Argentinian Northeast

Gymnocalycium andreae is a species of Gymnocalycium from Argentina.

Gymnocalycium calochlorum is a species of Gymnocalycium from Argentina.

Gymnocalycium amerhauseri is a species of Gymnocalycium from Argentina.

Gymnocalycium erinaceum is a species of Gymnocalycium from Argentina.

Gymnocalycium mostii is a species of Gymnocalycium from Argentina.

Senecio leucopeplus is a species of flowering plant in the family Asteraceae. It is native to northeastern Argentina. The species is currently extinct in the wild, as the last 2 specimens found in the wild disappeared in 2007. There are currently two specimens in cultivation at the Pillahuincó Botanic Garden.

Nothoscordum × borbonicum, also known as honeybells, fragrant false garlic and onion weed, is a bulbous perennial. It has become naturalized as a nearly cosmopolitan weed. The whitish flowers are sweetly scented. It is a hybrid between N. entrerianum and N. gracile. The binomial names Nothoscordum fragrans and Nothoscordum gracile have also been applied to this plant.

Gymnocalycium robustum is a species of Gymnocalycium from northern Córdoba and southern Santiago del Estero, Argentina.

Hippeastrum arboricola is a flowering herbaceous bulbous plant in the family Amaryllidaceae, found in Argentina.

Gymnocalycium quehlianum, the Quehla chin cactus, is a species of flowering plant in the family Cactaceae, native to northern Argentina.

Hordeum erectifolium is a species of herbaceous plant in the family Poaceae. It is native to Northeastern Argentina.

Gymnocalycium angelae is a species of cactus in the genus Gymnocalycium, endemic to Argentina.

Carex monodynama is a species of flowering plant in the family Cyperaceae. It is a tussock-forming species of perennial sedge that is native to parts of Argentina.

Baccharis albida is a species of flowering plant in the family Asteraceae and is an endemic to Argentina. Baccharis albida is a perennial shrub that grows up to 1.7 metres high. The plant grows between 0 and 500 metres elevation and is found in the following provinces of Argentina: Buenos Aires, Chaco, Corrientes, Entre Ríos and Santa Fe.

Melica hunzikeri is a species of grass that is endemic to southern South America.

Gymnocalycium mihanovichii is a species of cactus from South America. The most popular cultivars are varied mutants which completely lack chlorophyll, exposing the red, orange, or yellow pigmentation. These mutant strains are often grafted onto the hylocereus cactus, and the combined plant is called a "Moon Cactus". Moon cacti are commonly grown as houseplants and are also known as Ruby Ball, Red Cap, Red Hibotan, or Hibotan cacti.

Aa achalensis is a species of terrestrial orchid in the genus Aa. It is found at high altitudes in Argentina's Sierras de Córdoba.

Acanthocalycium spiniflorum is a species of flowering plant in the cactus family Cactaceae from Argentina.

Opuntia aurantiaca, commonly known as tiger-pear, jointed cactus or jointed prickly-pear, is a species of cactus from South America. The species occurs naturally in Argentina, Paraguay and Uruguay and is considered an invasive species in Africa and Australia.

Gymnocalycium bruchii is a species of Gymnocalycium from Argentina.

Tephrocactus articulatus is a species of cactus in the subfamily Opuntioideae of the plant family Cactaceae, endemic to northern Argentina.

Neobouteloua is a genus of Argentine and Chilean plants in the grass family. Species Neobouteloua lophostachya (Griseb.) Gould - Chile, Argentina (Catamarca, Córdoba, Salta, Tucumán, La Rioja, San Luis, Mendoza, Santiago del Estero) Neobouteloua pauciracemosa M.G.López & Biurrun - Argentina (La Rioja, San Luis)

Gymnocalycium monvillei is a species of Gymnocalycium from Argentina.

Gymnocalycium castellanosii is a species of Gymnocalycium from Argentina.

Echinopsis candicans, synonym Soehrensia candicans, is a species of cactus from northern Argentina. It has large fragrant white flowers that open at night.

Echinopsis aurea, is a species of Echinopsis cactus found in Argentina.

Bishovia is a genus of flowering plants in the family Asteraceae. Genus is named for Dr. Luther Earl Bishop. Species Bishovia boliviensis R.M.King & H.Rob. - Bolivia Bishovia mikaniifolia (B.L.Rob.) R.M.King & H.Rob. - Argentina

Polylepis australis, also known locally as tabaquillo or queñoa is a tree endemic of central Argentina, member of the family Rosaceae. The genus Polylepis originated in the eastern Andean forests of eastern South America.

Ipheion uniflorum is a species of flowering plant, related to the onions, placed in the allium subfamily (Allioideae) of the Amaryllidaceae. It is known by the common name springstar, or spring starflower. Along with all species of the genus Ipheion, some sources place it in the genus Tristagma, but research published in 2010 suggested that this is incorrect. It is native to Argentina and Uruguay, but is widely cultivated as an ornamental and reportedly naturalized in Great Britain, France, Australia, New Zealand and the United States.

Harrisia martinii, commonly called the Martin applecactus, is a species of night-blooming, rope-like cacti native to South America. With large showy flowers that attract the hawk moth, it is considered by some a useful landscape plant in areas that do not freeze.