Thank You, Josh...the spur is for pollination...theres a moth with a 12 to 15 inches proboscis that can pollinate this kind of plant...Darwin was laughed upon when he said there is such a moth...but 25 yrs after his death they found out that there is really such a moth...
its for looks as well...it gives it like a tailike accessory as like the star of bethlehem and its rays....it is also filled with sugar (tho I never attempred to taste it)