Slipper Plant

Here's a plant I don't think I've shown on this site before.  It's called a slipper plant but, it's official name is Euphorbia lomelii.  I've been told that it gets it's name from the blooms that supposedly look like ladies slippers.  Personally, I don't see the resemblance.  It's an unusual plant that produces these bloom but does not have any leaves.  It just has tall, erect stalks.  I see a lot of it in the hummingbird garden at the Desert Botanical Garden so it might be attractive to hummingbirds.