I am trying to identify my cactus that I planted when I xeriscaped last year. I never saved the little stick thing. I thought it was just a saguaro variation, but then it popped out all these red fingers. Any ideas?
It's a Cleistocactus variety, just not sure which, maybe C. smaragdiflorus, though the flowers on that one usually have a greenish tip, see here http://zipcodezoo.com/index.php/Cleistocactus_smaragdiflorus. The hairs/spines on the stems of your plant don't look silvery enough to be C. straussii either. C. hyalacanthus is another possibility, and that variety does have 'hairy' or furry flowers, like yours, but often has a non hairy or darker patch on top of the stems which I'm not seeing in your pics, so I'm afraid I can't say 100% which variety it is. Information about Cleistocactus generally here http://dendro.cnre.vt.edu/dendrology/syllabus/factsheet.cfm?ID=933