_____________________________________________________________________________________________________ *Corresponding author: E-mail: hoann@hcmue.edu.vn, thdung@ntt.edu.vn; Annual Research & Review in Biology 35(3): 97-114, 2020; Article no.ARRB.56811 ISSN: 2347-565X, NLM ID: 101632869 Analysis and Categorization of Several Dendrobium Species Based on Morphological Traits Nhu-Hoa Nguyen 1* , Tuan-Loc Le 2 , Huyen-Trang Vu 2 , Kım-Dınh Tran 3 , Hop Tran 4 , Hoa-Xo Duong 5 and Hoang-Dung Tran 2* 1 Faculty of Biology, Ho Chi Minh City University of Education, 280 An Duong Vuong Street, Ward 4, District 5, Ho Chi Minh 72711, Vietnam. 2 Faculty of Biotechnology, Nguyen Tat Thanh University, 298A-300A Nguyen Tat Thanh Street, Ward 13, District 4, Ho Chi Minh 72820, Vietnam. 3 Vietnam Academy of Agricultural Sciences, 121 Nguyen Binh Khiem Street, Ward Da Kao, District 1, Ho Chi Minh 71000, Vietnam. 4 University of Science, Viet Nam National University, Ho Chi Minh City, 227 Nguyen Van Cu Street, Ward 4, District 5, Ho Chi Minh 72711, Vietnam. 5 Biotechnology Center of Ho Chi Minh City, 2374 Highway 1, Quarter 2, Ward Trung My Tay, District 12, Ho Chi Minh 71507, Vietnam. Authors’ contributions This work was carried out in collaboration among all authors. Authors NHN, HTV and HDT designed the study, performed the statistical analysis, wrote the protocol and wrote the first draft of the manuscript. Authors KDT, HT and HXD managed the analyses of the study. Author TLL managed the literature searches. All authors read and approved the final manuscript. Article Information DOI: 10.9734/ARRB/2020/v35i330205 Editor(s): (1) Dr. Bechan Sharma, University of Allahabad, India. Reviewers: (1) L. C. De, National Research Centre for Orchids, India. (2) Gonzalo E. Aranda Abreu, Universidad Veracruzana, Mexico. Complete Peer review History: http://www.sdiarticle4.com/review-history/56811 Received 02 March 2020 Accepted 07 May 2020 Published 19 May 2020 ABSTRACT Dendrobium Sw. is the a highly diversified Orchidaceae genus with at least 100 identified species in Vietnam. Classification and description of this genus in Vietnam suffered from a number of setbacks such as lack of synchronization and photographic illustrations, which rendered identification and researches of Dendrobium samples a daunting task. Therefore, this study constructed the database of morphological descriptions along with sample images of forty Original Research Article