Alstonia sebusii, synonym Alstonia henryi, is a species of flowering plant in the family Apocynaceae, native to the region of Assam, south-central China, the east Himalayas and Myanmar.

[2] Alstonia henryi was assessed as "vulnerable" in the 2004 IUCN Red List, where it is said to be native only to Yunnan, China.

[3] As of February 2023[update], A. henryi was regarded as a synonym of Alstonia sebusii, which has a wider distribution.

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