Plants on different continents
have evolved similar forms, wherever there are similar conditions. For
example, some Euphorbias have adapted to desert conditions in Africa and
are the equivalent of the American cacti. Both are succulent, have a thick
rubbery skin, ridges, prickles and green stems. Euphorbias also have a
white milky latex inside to heal wounds and prevent water loss.
Use the classification below to find examples of the different types
of succulent from two continents. What are their similarities and differences?
Humans have moved these plants around the world so wherever dry desert
conditions are found, these plants will successfully grow.
