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reminds me of a cat tail
It's green and has these thorn looking leaves sprouting upwards and it curls like a cats tail, do you know what it is?
Drought Smart Plants reply:
Hi Emma, I'm glad you reposted this as there was an issue (too much traffic on the server, maybe?) when I went to publish it, it went off into the ozone!
Anyway, I'm feeling that what you have is actually Sedum reflexum 'Blue Spruce' or something similar - it's so hard to tell the scale (how big it actually is) that I'm not 100% sure.
Sadly, if that is what you have, I'm sorry to say that you have a bloom stalk, which if you're lucky it will root, but probably not grow.
What you can try is to cut it off right at the bottom (say 2" long or so) and then root that.
It's likely in that case that there will be some vegetative buds which will turn into more of the leaves, not the flowers.
One thing I did see was that you have it in water; if you look on the page on succulent plant propagation you'll see why I recommend letting these types of plants almost completely dry out while they root.
Hope that helps you to care for your new plant - who knows? We may have a new succulent plant addict here.