Pachypodiumis a shrubby plant with a bottle-shaped trunk, brownish silver and almost spineless, about 10–15 centimetres (3.9–5.9 in) wide and about 20–35 centimetres (7.9–13.8 in) tall. From depart many thorny cylindrical arms, forming a shrub about 1.5 metres (4 ft 11 in) tall. Pachy leaves, which fall in the dry season, form a rosette on the top of branches. They are deciduous, dark green, oblanceo
It is estimated to have an extensive range (over 300,000 km2 ) and it is common or very common in at least parts of its rangeIt is found in arid places, usually among rocks associated with succulent scrub vegetation at altitudes of 15-685 m . Unlike other South African species of Pachypodium, P. succulentum is resistant to frost and sometime withstand temperatures of -10° C in winter. It is naturally well adapted to the hot and dry environment in which it grow.
The succulent stems act as water stores, and enable the plant to survive the harshest conditions. The thick tuberous underground stem also help the plant to survive long periods without water. It can therefore withstand intense heat and long periods of drought.
P. succulentum can be confused with the sympatric when not flowering. In fact the spiny branches of both sprout from a proportionally huge cauduciform taproot but flowers and flowering times are different, and the two species do not hybridize in habitat