''Harrisia pomanensis'' is a species of

cactus A cactus (, or less commonly, cactus) is a member of the plant family Cactaceae, a family comprising about 127 genera with some 1750 known species of the order Caryophyllales. The word ''cactus'' derives, through Latin, from the Ancient Greek ...

Description

''Harrisia pomanensis'' sometimes grows a bit bushy. The more or less upright, sometimes arched or prostrate, blue-green or gray-green, glaucous shoots are almost round and have a diameter of 2 to 4 centimeters. There are four to seven blunt, rounded, non-humped ribs. The needle-like, initially reddish to almost white thorns later turn gray with a black tip. The individual central spine is 1 to 2 centimeters long. The six to eight marginal spines reach a length of up to 1 centimeter. The flowers reach a length of up to 15 centimeters. The spherical, slightly bumpy red fruits have a few scales. File:Harrisia pomanensis Blüte.jpg, Flower File:Harrisia pomanensis1OSKF.jpg, Plants File:Harrisia pomanensis.jpg, Fruit File:Harrisia pomanensis Knospe.jpg, Buds

Distribution

''Harrisia pomanensis'' is widespread in southern Paraguay, Bolivia and northern Argentina at elevations of 200 to 1200 meters. ''Harrisia pomanensis'' is considered an exotic invasive in

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

Taxonomy

The first description as ''Cereus pomanensis'' was made in 1897 by Frédéric Albert Constantin Weber in Karl Moritz Schumann's complete description of cacti. The specific epithet pomanensis refers to the occurrence of the species near Pomán in the Argentine province of Catamarca. Nathaniel Lord Britton and Joseph Nelson Rose placed the species in the genus ''Harrisia'' in 1920. Further nomenclature synonyms are ''Eriocereus pomanensis'' (F.A.C.Weber) A.Berger (1929) and ''Echinopsis pomanensis'' (F.A.C.Weber) Anceschi & Magli (2013).

References

External links

* * {{Taxonbar, from=Q291746 pomanensis Cacti of North America Cacti of South America Flora of the Caribbean Flora without expected TNC conservation status Flora of Paraguay Flora of Bolivia Flora of Argentina