Complex sentence: It is these hanging chains of fruit which give it the name "hanging chain cholla", whereas the "jumping cholla" name comes from the ease with which the stems detach when brushed, giving the impression that the stem jumped onto you.
Split into simpler sentences: It is these hanging chains of fruit which give it the name "hanging chain cholla". The "jumping cholla" name comes from the ease with which the stems detach when brushed, giving the impression that the stem jumped onto you.