One of the very few members of the Cacataceae family with a caudex. It
was described by Jesús González Ortega in 1926, found in Mexico, growing on the higher
mountain-sides´ well-drained grit. Some water in growth and lots of sun.
It has big crčme and pink flowers, which only can been seen at night. It can both be reproduced by seeds
and cuttings, but only the seedlings and the specially square "dropping-shots" will form a caudex, which by the way can grow
to 20 centimetres in diameter. If it doesn't freeze down, the stems will
reach 3 meters.
The genera name from pene;
'thread' and Cereus another member of the Cactaceae family, as to
plant form. The species name after Joseph Nelson Rose, early
20th century American botanist and authority on Apiaceae and