Labiate

All the seeds are gone and the hairs are grey.
I've been for a walk on this August day.
Now I'm safe at home, let the music play
As I process what I'm Blippin' on this August day.

(With apologies to John and Michelle Phillips of the 'Mamas and the Papas'.)

I don't know precisely what plant these empty seedpods belong to but it is certainly one of the labiates ( Lamiaceae).

I liked the spikiness and the hairiness and the purpleness and the emptyness.