Thank you Lin for starting this thread. I would like to add that it should go beyond the photo category and also include actual database entries. As far as I can tell all cacti entries now come labeled as 'thorned' which is incorrect. I know that Lin knows this, but in case others do not: spines and thorns are distinctly different not just in appearance but also how they form and what part of the plant they actually derive from.
I think this website and organization is serious enough about adding plants to and information entry for the database that they should want to get this right as well. Should not be that hard to add an option to say a plant has spines in addition to the 'thorned' option.
