namelus ,
In the Southwest , particularly the very old sections , you will see layers of cactus , prickly pear up front ( it also grows fairly fast ) …………and the most EVIL of all cactus behind the prickly pear …..the dreaded teddy bear cholla ! Anybody who has lived in that part of the country for any length of time , knows they dont even want to go near that thing , they also call it the jumping cholla , because it seems to get you no matter what if your too close , and they hurt……..a lot . Behind that they would plant ocotillo , a very tall spear like plant ………thats packed with thorns . Also called ‘ living fence ‘ , because farmers used to plant individual stalks in the ground and tie them together to form a fence . ……………..few people will want to attempt that triple layer of misery .