Purple Stink Lily Spiders
Not sure of the species of lily. Found some similar plants (Dragon Flower) but the leaf structure was quite different. Mine has a leaf much more like an Arum Lily (Zantedeschia aethiopica) which I also have growing here.
If you look carefully you will note a number of very small (not well focused) spiders lurking. I was a little surprised, never noticed them when I took the photo.
Wider field view of the plant here: https://www.jungledragon.com/image/53688
Spring Adelaide 2017.
"Arum palaestinum" is a species of flowering herbaceous perennial plant in the family Araceae. This plant is native to the Levant and other parts of the Mediterranean Basin, and has been naturalized in North America, Europe, and Australia.