Correspondence Orchid
Dendrobium epistolare
An orchid whose petals carry faint handwriting — always a letter of thanks, never to anyone the gardener knows.
Cartographer's Root
Daucus itinerans
A wild carrot whose taproot grows in the exact shape of the route to wherever its seed was collected.
Hollow Elm
Ulmus testamenta
An elm whose growth rings record the last words spoken near it each year — and which has started recording words that have not been spoken yet.
Countersigned Rambler
Rosa libaviensis
From 1904, whenever a Libau glassblower signed his name, his hand wrote the name of his rose instead, including on his will.