I've made walking sticks for myself and friends for many years. I've used all kinds of locally available wood (maple, Russian olive, oak) but I think I've found the perfect walking stick wood: yucca. In good years with some rain the yucca plants send up a long stalk that sprouts big white flowers. These become seed pods that dry out and then open up, dropping their seeds. These long seed stalks make excellent walking sticks. They are light but very strong. And they never warp. They aren't really wood. They are made of many long fibers, sort of like a graphite fishing rod. As you drive around the back country around here you see zillions of yucca plants with their seed stalks sticking up. So I stop and snip off some, using a long handled pruning nipper, and throw them in my truck. This doesn't hurt the yucca plant. It will grow more stalks another year. Later, I make walking sticks out of them. I use a saw and miter box to cut them to length. And a knife to trim off the rough stuff. Then I whittle a rounded top, and do some sanding. I drill a lanyard hole (I like paracord) below where a person's hand will rest. Then I put on a couple of coats of linseed oil. Then I put a heavy duty rubber cane tip (I buy Carex cane tips off ebay) and tie on a lanyard. A nice touch is to glue a metal button on top. I found a bunch of interesting metal buttons locally. These have a post or stud sticking out the back for thread. I dig a hole in the end of the stick for the button's stud with a screw driver, then fill it with epoxy and set the button down flat with it's stud in the epoxy.
They turn out very nice. I give them to friends, and I sell them at local galleries and markets for about $20-25. People really like them because they look good, are light, strong, feel good in the hand, and will last forever with an occasional coat of oil. The rubber cane tip can be pulled off and replaced when it wears out.
Here are some pics and info.
By the way, the yucca is the state flower of New Mexico.
Here is the stick I use all the time. It's getting a little beat up, but it's still going strong.