Before this lunatic quest was embarked on, I wouldn’t really have given this plant a second look, never mind take a photo or identify it. It is evidently bitter to eat, and I can inform you that it is quite small. Do feel free to enjoy Biting Stonecrop Sedum acre.
Elsewhere, I may have seen an Xiphydria prolongata, but it moved too quickly to get proper views. Thrilling eh?