Hi Lynn! I did thought it was a Senecio articulatus, the only thing is that the shape of the leaves as shown on the link you shared and on the other photos online that I saw is not similar to what I see on my plant. I took some more photos earlier today (30 Oct), there seems to be some growth that looks like its leaves. I have always seen this plant growing just like sticks. It does not show this growth before:
