Cacti and yuccas

Where are my yuccas. I want to be able to id banana yucca correctly.

Tasajil (jumping cactus) fruit can supposedly can be used as a cough drop but o would not try it. To hard to clean of the little owies.

Prickly pear tunas usually taste better purple.

The yucca with the white flowers growing around a column stick in the center have edible flowers and the center stick is edible when cooked.