Trees and Forests on Stamps

[Note: I will receive my ordered stamps and postcards tomorrow, but I can't wait to share with you my feeling of awe at Nature's resilience!]

In response to the annual G7 Summit taking place in Hiroshima, Japan Post issued a set of 5 stamps that showcase Hiroshima's specialities. The most surprising appearance might have been made by -- a tree!



The stamp illustration depicts the official tree of Hiroshima -- camphor tree (クスノキ) that has, since the 1945 bombing, become a symbol of the city's rebirth and vitality.

As a matter of fact -- however surprising it may seem -- about 160 naturally grown trees in Hiroshima have survived the atomic disaster. Everything above the ground level was damaged by radiation, but the roots underground have been kept alive. Together, these trees of various species are collectively called 'hibakujumoku' (被爆樹木).

I marvelled at the learning about this historical fact while researching for a postcard whose main subject of depiction is tree (preferably the tree should have a Hiroshima connection) in order to create a set of maxicards out of this set of G7 stamps. Obviously, as there are not many such postcards about trees, my search originally was fruitless. I only thought about searching for hibakujumoku postcards precisely after learning about Hiroshima's A-bombed Trees. And this set I found:

www.47club.jp/33M-000103qno/goods/detail/10166844/

Lately, on Poscrossing forum -- a postcard exchanging and collecting platform -- where I am organising a Hiroshima/Nagasaki giveaway, I have noticed that many participants share a perculiar fascination with these trees. The tree postcards were just in as popular a demand as the A-bomb Dome postcards.

As for stamps -- even though I can't self-claim to be a floral expert, but in my collecting career of flower stamps, I don't recall having seen many stamps about tree(s). When trees appear on the image of a stamp, they are usually part of the natural landscape that forms the subject matter of the stamp. Unlike flowers and fruits and sometimes leaves (especially those that change colour in accordance to the seasons), they are hardly ever made into the object of commemoration itself.

Do you know any other stamp that pays hommage to trees in real life(*)?

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(*) I want to exclude fictional example such as the magnificent tree that appears in Hayao Miyazaki's Casle in the Sky -- though insofar as I know, there is no stamp issued based on this fiction.