山羊百科，林文智老師的植物、山岳、攝影紀錄

• FOC Vol. 20-21 Page 491, 499；23. Synotis cappa (Buchanan-Hamilton ex D. Don) C. Jeffrey & Y. L. Chen, Kew Bull. 39: 319. 1984.；密花合耳菊；http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=250097799
• Nepal Checklist；Senecio cappa Buch.-Ham. ex D. Don, ; Prodr. Fl. Nep. 179 (1825)；http://www.efloras.org/florataxon.aspx?flora_id=110&taxon_id=242425505
• efloraofindia - Google Sites；Synotis cappa；https://efloraofindia.com/efi/synotis-cappa/

• Synotis cappa (Buch.-Ham. ex D.Don) C.Jeffrey & Y.L.Chen；This species is accepted；https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:914676-1

• Synotis cappa (Buch.-Ham. ex D.Don) C.Jeffrey & Y.L.Chen；Kew Bull. 39: 319 1984；Jeffrey, C. and Yi-ling Chen 1984 Taxonomic Studies on the Tribe Senecioneae (Compositae) of Eastern Asia [Kew Bull.] 39: 205-446；https://doi.org/10.2307/4110124
  • Senecio cappa Buch.-Ham. ex D.Don, Prodr. Fl. Nepal. 179 1825；https://www.biodiversitylibrary.org/page/393076#page/189/mode/1up

• Senecio angulosus Wall.；This name is a synonym of Synotis cappa var. cappa；https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:243793-1

• Senecio angulosus Wall., Numer. List [Wallich] n. 3117 1831；https://www.biodiversitylibrary.org/item/15503#page/1/mode/1up

• Senecio angulosus Wall.；DC., Prodr. [A. P. de Candolle] 6: 369 1837；nom. inval.https://www.biodiversitylibrary.org/page/150311#page/374/mode/1up
  • Senecio cappa Buch.-Ham. ex D.Don, Prodr. Fl. Nepal. 179 1825；https://www.biodiversitylibrary.org/page/393076#page/189/mode/1up

• Senecio densiflorus Wall. ex DC.；This name is a synonym of Synotis cappa var. cappa；https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:244805-1

• Senecio densiflorus Wall. ex DC.；DC., Prodr. [A. P. de Candolle] 6: 369 1837；https://www.biodiversitylibrary.org/page/150311#page/374/mode/1up

• Senecio ionodasys Hand.-Mazz.；This name is a synonym of Synotis cappa var. cappa；https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:245701-1

• Senecio ionodasys Hand.-Mazz.；Notizbl. Bot. Gart. Berlin-Dahlem 13: 637 1937
  • Synotis ionodasys (Hand.-Mazz.) C.Jeffrey & Y.L.Chen in Kew Bull. 39: 320 1984

• Senecio ionodasys Hand.-Mazz.；Fan, Yu, Rui Zhang, Chun-Lan Guo and Ming Tang 2022 On the identity of Synotis ionodasys (Asteraceae: Senecioneae) from Yunnan, China Phytotaxa 545(2): 207-216

Synotis cappa var. pubescens

• Synotis cappa var. pubescens (Kitam.) H.B.Naithani；This variety is accepted；https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:956500-1

• Synotis cappa var. pubescens (Kitam.) H.B.Naithani；Fl. Pl. India, Nepal & Bhutan: 241 1990
  • Senecio densiflorus var. pubescens Kitam. in Faun. & Fl. Nep. Himal.: 271 1955；Kihara, H. 1955 Scientific results of the Japanese expeditions to Nepal Himalaya 1952-1953 Fauna and Flora of Nepal Himalaya Fauna and Flora Research Society
    • Senecio cappa var. pubescens (Kitam.) Kitam. in Enum. Fl. Pl. Nepal 3: 41 (1982)