The Spikeocausius (spiky dark green cactus, Latin: Spikeocausius harmanii) is a badplant in Creatures 2. It is an 'ecological' component of the ecology of Albia, and so it has particular needs for a high light level (over 100) and low levels of inorganic nutrients (between 0 and 50).
When pushed or pulled, the spikeocausius gives 100 pain increase. Their seeds are inedible.
Please note that there is conflicting information available about its potential to harm - the official C2 Species List asserts that it is harmless. The values above come directly from the scriptorium.