Update information on the endangered status of orchid species (categories VU, EN, CR) and propose solutions for their effective conservation in Vietnam.

A total of 200 orchid species in Vietnam were assessed as being threatened, consisting of 75 species as Critically Endangered (CR), 74 species as Endangered (EN) and 51 species as Vulnerable (VU). 16 species are included in the Vietnam Red Data Book and the remaining species are new assessements that bring the total of threatened orchids in Vietnam to 252 species; among them 114 species are endemic to Vietnam, 27 species are listed in Group IA and 173 species listed in Group IIA of the Decree 06/2019/ND-CP.
Some solutions for protection of these orchid species were provided in order to orient the future research.

The study provided a list of 200 selected threatened orchid species in Vietnam. This is the new data with high value which is the scientific basis for building a conservation plan by the distribution area.

- Publications: 
1. Leonid V. Averyanov, Maxims. Nuralev, Tran Huy Thái, Tatiana Maisak, Eugene S. Popov, Andrey N. Kuznetsov, Svelana P. Kuznetsova. Vanilla cardinalis 9 Orchidaceae, Vanilloideae), a new red-lipped species from southern Vietnam. Phytotaxa. 2022.
2. Leonid V. Averyanov, Tran Huy Thái, Ba Vuong Truong, Van Canh Nguyen, Tuan Hoang Nguyen, Tatiana Maisak, Nguyen Sinh Khang, Van Khuong Nguyen. New orchids in flora of Vietnam IV (Orchidaceae, Aeridinae). Phytotaxa. 2022.
3. Leonid V. Averyanov, Tran Huy Thái, Van Canh Nguyen, Ba Vuong Truong, Tatiana Maisak, Nga Thi Doan, Nguyen Sinh Khang. New orchids in flora of Vietnam V (Orchidaceae, Aeridinae). Phytotaxa 572 (1), 43-0. 2022.
- Patents: None.
- Products (description...): A list of threatened orchids in Vietnam (200 species).
-  Training: 01 BSc.

Continued cooperation is necessary to identify orchid species as threatened  by the sub-crietia of distribution, habitat, number of individuals and populations.