Thanks!
The number of spines can fluctuate - so that would not be a disqualifier and the color is probably a combination of the flash I had to use to get a decent picture and the fact that this one is currently adjusting to the fact that the angle of the sun has changed not hat it is fall - so it is getting a little more sun as the overhang it is under is not quite as good at preventing the sun from reaching it. It is normally pretty much the same dark green color as yours.
