The trunk of the half-mens plant is protected from damage by thirsty animals thanks to a covering of long spines.
Image: Martin Heigan /
Image: Er.We /

This photo shows the protective spines.

Image: Robert Jacob Gordon / Public Domain - No restrictions

Painting of Pachypodium namaquanum Welw. ("Halfmens") with spines visible.

“The half-mens [Pachypodium namaquanum], growing in the same [Namib] desert, has reduced its leaves to one small bunch sprouting from the top of a pillar-like trunk bristling all over with ranks of long spines that must deter many a thirsty animal from gnawing it in search of liquid.” (Attenborough 1995:272)

Last Updated May 14, 2018