There's a few plants that have these kind of "widnows" on top of their leaves (google "leaf window"). They are adapted to very harsh, hot climates. The windows allow them to remain mostly buried in the soil and keep the photosynthesizing part of the leaf protected from the harsh conditions while still being able to collect light.

Again, looking very much like their namesake.

Is this how they harvest hops?

Bonsai Tree's final form.

Perfect for Medusa!

Curly Q's.

They look like brains but also like candy and now I feel a little like a zombie...

That's just one type of echeveria, they come in many beautiful colours

Lots of love.

Love the colours on this one.

I honestly thought this was a beaded pincushion upon first glance. I had to Google it, and supposedly it is called "euphorbia obesa" and it does indeed look like the photo above. Pretty amazing!

Cake icing.

Now those are some huge potato crisps/chips

Looks like a flower.;.A very hairy one, though!

Fun fact: A group of dolphins is called a pod. Now I know why!

Like waves ... mesmerizing.

Just wanted to mention that the top part is a planter and the bottom is the plant itself. Still cool tho, since they grow upside-down.

The fronds look like they're waving about in the air.

These two succulents have gotten more lip action than I have in months.

Ooh, I have this one too! Cool plant, awesome flowers which are made to resemble rotten flesh from the color and surface structure (Yes, you read that right. It's called a carrion flower). Striking and beautiful, needs a lot of hear and sun. But it's best put in a more airy place where you wont stay long enough to be bothered by the occasional waft of air blowing the smell into your direction... the flowers smell like rotting flesh, too, after a day or two. Thankfully not that strong, you hardly notice from about a meter away, but you definitely don't want to have it close to your couch.

Like a beautiful sculpture!

These look like they should be in a Lichtenstein painting.

I've had these in my house before. They hated me. :(

the green part looks like a red blood cell

This one would be improved with some googly eyes!

Fibonacci would be proud

"Don't you stick your tongue out at me, young lady!"

I did look at the entire photo before 100% concluding... anything Bowie is gonna be cool! I didn't really doubt it tho' :) #should2did

I'll name this plant the Aloe Vulva.

Another carrion flower.... do beware of the smell. They are pollinated by carrion flies.