Northern uplands (Luang Prabang, Houaphanh)
Laos
The real source of Siam benzoin. Styrax tonkinensis comes up in upland rice fallows; families tap it for a decade before the land returns to cultivation. Exports flow through Luang Prabang to Grasse.
| Region | Northern uplands (Luang Prabang, Houaphanh) |
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