Crows Ash or Australian teak

I picked this up off the ground in Hyde Park,in Sydney city CBD, drew it and then had to find out what it was! I was Googling online with descriptions "pointy, spiky pod". I was amazed to find out it is Australian. I don't think I have seen it or heard of it before. I am learning so much as I draw.

Watercolour pencil on Moleskine