Trung tâm Dữ liệu Thực vật Việt Nam；Rhododendron crenulatum Hutch. ex Sleum.；https://www.botanyvn.com/cnt.asp?param=edir&v=Rhododendron%20crenulatum&list=species&lg=en

Rhododendron crenulatum Hutch. ex Sleumer；This species is accepted；https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:332261-1

Rhododendron crenulatum Hutch. ex Sleumer；Blumea, Suppl. 4: 44 1958；Sleumer, H. 1958 The genus Rhododendron L. in Indochina and Siam. Blumea. Supplement, 4(1) 39–59

Rhododendron crenulatum Hutch. ex Sleumer；Cullen in Not. Bot. Gard. Edinb. 39: 43 1980；Cullen, James 1980 A Revision of Rhododendron I: Subgenus Rhododendron sections Rhododendron & Pogonanthum Notes Roy. Bot. Gard. Edinburgh 39 (1): 1-207

Rhododendron Subsect. Maddenia

Rhododendron fleuryi

Rhododendron fleuryi Dop ex A.Chev.；This species is accepted；https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:332436-1

Rhododendron fleuryi Dop ex A.Chev.；Chevalier, Rev. Bot. Appl. Agric. Colon. 9: 255 T.9 1929；https://gallica.bnf.fr/ark:/12148/bpt6k122469x/f273.item
- Illustration；https://gallica.bnf.fr/ark:/12148/bpt6k122469x/f268.item

Rhododendron fleuryi Dop ex A.Chev.；Dop, Fl. Gen. Indo-Chine (Lecomte) 3: 741 1912；https://www.biodiversitylibrary.org/item/88078#page/744/mode/1up
Rhododendron fleuryi Dop ex A.Chev.；Cullen in Not. Bot. Gard. Edinb. 39: 54 1980；Cullen, James 1980 A Revision of Rhododendron I: Subgenus Rhododendron sections Rhododendron & Pogonanthum Notes Roy. Bot. Gard. Edinburgh 39 (1): 1-207

Rhododendron Subsect. Maddenia

Rhododendron poilanei

《中国植物志》第57(1)卷 (1999) >> 189页 PDF >> 毛果缺顶杜鹃 Rhododendron emarginatum var. erioacarpum；https://www.iplant.cn/info/Rhododendron%20poilanei?t=z
FOC Vol. 14 Page 317；175. Rhododendron poilanei Dop in Lecomte, Fl. Indo-Chine. 3: 739. 1930.；毛果缺顶杜鹃；http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=242444111

Sect. Vireya

Rhododendron poilanei Dop；This species is accepted；https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:333105-1

Rhododendron poilanei Dop, Fl. Indo-Chine [P.H. Lecomte et al.] 3: 739 1930；https://www.biodiversitylibrary.org/item/88078#page/742/mode/1up

Rhododendron emarginatum var. eriocarpum K.M.Feng；This name is a synonym of Rhododendron poilanei；https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:917985-1

Rhododendron emarginatum var. eriocarpum K.M.Feng；Acta Bot. Yunnan. 5: 268 (1983)

《中国植物志》第57(1)卷 (1999) >> 188页 PDF >> 缺顶杜鹃 Rhododendron emarginatum；https://www.iplant.cn/info/Rhododendron%20emarginatum?t=z
FOC Vol. 14 Page 317；174. Rhododendron emarginatum Hemsley & E. H. Wilson, Bull. Misc. Inform. Kew. 1910: 118. 1910.；缺顶杜鹃；http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200016406
Trung tâm Dữ liệu Thực vật Việt Nam；Rhododendron emarginatum Hemsl. & Wils.；https://www.botanyvn.com/cnt.asp?param=edir&v=Rhododendron%20emarginatum&list=species&lg=en
- Rhododendron poilanei Dop, Fl. Indo-Chine [P.H. Lecomte et al.] 3: 739 1930；https://www.biodiversitylibrary.org/item/88078#page/742/mode/1up

Sect. Vireya

Rhododendron emarginatum Hemsl. & E.H.Wilson；This species is accepted；https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:332369-1

Rhododendron emarginatum Hemsl. & E.H.Wilson, Bull. Misc. Inform. Kew 1910(4): 118 1910；https://www.biodiversitylibrary.org/page/11623120#page/125/mode/1up