Answer: Contorted witchhazel or Corylus avellana "Contorta" (also called Harry Lauder's Walking Stick) is available from mail order sources such as Wayside Gardens, 800-845-1124.
You may also be able to locate it at a nursery in your area. Nurseries that handle Monrovia (and other) products can be identified using the zip code search at the Monrovia web site.
Good luck with your search!
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