Arthrocereus glaziovii

Arthrocereus glaziovii is a succulent, shrubby cactus of the family Cactaceae, endemic to south-eastern Brazil, where it grows in rocky areas and is threatened by habitat loss. It is widespread to the east and south of Belo Horizonte in the state of Minas Gerais at altitudes of 1,300 to 1,750 metres, over an area of about 1,000 square kilometres. Its erect shoots, with slightly spreading side shoots, are 1.5 to 2.5 centimetres across and carry 12 low ribs and 20 to 30 brownish to ash-grey subulate spines. The white flowers are slightly curved and up to 6 centimetres long, and the elongated fruits reach 2 centimetres. Karl Moritz Schumann first described it as Cereus glaziovii in 1890, naming it after the plant collector Auguste Glaziou, and Nigel Taylor and Daniela Zappi moved it to the genus Arthrocereus in 1991.