I have some mature aloe with lots of "pups." The pups have white elongated spots but the mature leaves do not. I would like to eat some, as I heard they are good for a host of medical problems. What I am unsure of is the variety of aloe I have got, as only certain varieties have medicinal properties and the rest are decorative plants. How do I know the variety of the aloe I have? Thank you.
For starters, here's a site that shows the most common aloe species: http://succulent-plant.com/families/aloaceae.html
If you're still not sure, the best thing is to get an expert identification. If you are in the US, you can take some photos of your plant (showing flowers and leaves, if possible) to the county extension service. This link will help you find the nearest office:
If you're in the UK, you might want to access the local Master Gardener organization. They have loads of information and assistance available for home gardeners. This link will help you locate the nearest group:
If you're anywhere else, call the botanical garden in the city nearest you, and ask them for advice in identifying your plant.