Hey Radogast, that was an understandable guess. It does look spiny on the leaves and such like a cactus, so I would probably have thought something along those lines too if I hadn't known what they are.
These are actually ground cover plants, that have gone a little too crazy covering ground. LOL I have to keep uprooting them from the lawn. They are called commonly "Spotted Dead Nettle", the scientific name is Lamium Maculatum.
The flowers are very small, less than a half inch, and they open into little bowls that hang downward.
The close ups you see in the pics are of the new flowers, they start out like little balls in white color and then turn to pink
Here's a pic of them when mostly mature:
And one so you can see the underside of the flowers:
This is where most of the whatizit's pics came from, the immature flowers. They are less than 1/4" in size:
The little feet are the stamens in the flowers.
I've got a really busy day ahead, and hoping the rain holds off for a while.
If I get anything picture worthy, I'll post later.
Happy Saturday all!