Tea is a camellia. If not coppiced, i.e. trimmed, it grows into a tree several metres high, which doesn’t make things easy when it comes to picking up the leaves. It is usually trimmed about 75 centimetres high, a habit that creates these beautiful green fields that look like carpets. A tea field is in fact a tree field.
The tea flower looks very much like other camellias:
There are also tea seeds:
But I haven’t yet seen any plant growing tea bags. They’d better not, I think, as I don’t like them very much, being somewhat old-fashioned, even in the way I prefer to make tea.
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Quelques sachets de thé local pour M. A. J. P. Crown, à toutes fins utiles :

Some Bois Chéri tea bags. Vanilla flavour, probably the most popular tea on the island, and bergamote flavour. (Clickable image.)
No teabags this time: