Name: Glen Ingram Macleay Is, Qld, Australia (Zone 12a) (Lee Reinke X Rose F Kennedy) X Unk
The other yellow blooms are Australian Buttercups Ranunculus lappaceus. They self seed. It is always a pain doing the mulching and ensuring they come up each year.
Ann, it is Sedum acre. They are getting ready to flower. I have always meant to write up how I did it as a groundcover. Slacko.
The problem is that when you are young your life it is ruined by your parents. When you are older it is ruined by your children.