This member of the Asclepiadaceae*
family was given this name by
Arthur Allman Bullock. It is found in
Mozambique, Tanzania, Zambia and Zimbabwe, growing in
grit or well drained soil with some water and some to lots of sun on
dry forests and openings. The
caudex can grow to six or even twelve centimetres in diameter, the whole plant up
to 60 centimetres in height. The
flowers are violet to blue, and besides from seeds, this plant might be
reproduced by cuttings.
Pentagonanthus grandiflorus ssp. glabrescens, Bullock
is, as the name imply; hairless.
*This family might
been incorporated in the Apocynaceae