dweste,hikermor
Being occasional desert travelers, you might be interested in this.
Yuca or Yucca is it safe?
I happened to be in a Mexican produce store the other day
and they had a brown root that was described as Yuca or Yucca,
I cannot remember which.
I had always thought that Yucca root was used as SOAP so
I was very surprised to see it in the store. I have not resolved
this in my mind, but here are some links.
http://wiki.answers.com/Q/Is_yucca_ediblehttp://www.recipetips.com/glossary-term/t--35498/yuca-root.aspTwo other plants that grow in a wide range of climates are
Amaranth and Jerusalem Artichoke. The latter is a long lasting
root plant that I have planted in the Great Plains and it lasted
years with no attention. It would have multiplied with very
little effort on my part.