You can always count on a murderer for fancy prose style.

In a princedom by the sea. Oh when?

Colville's Glory

Colvillea racemosa on the Isle of Devils.

Pycnostachys reticulata - witch's hat

"pyknos" means dense - "stachys" means a spike - "reticulata" means a network (describing the underside of the leaf) It is a South African sage plant. It grows in swampy areas (I found out about this later... mine grows in a dry place!) .

remedy (beyond reasonable No. 225)

poison