Compositae Working Group (CWG) (2025). Global Compositae Database. Vernonia calvoana subsp. usambarensis C.Jeffrey. Accessed at: https://www.compositae.org/gcd/aphia.php?p=taxdetails&id=1215030 on 2025-09-11
original description(1988). Kew Bull. 43(2): 236 (1988) page(s): 236 [details]
Unreviewed
Contributed data: Authors Data only shown for fields conflicting with the consensus taxon record C. Jeffrey [Robinson Vernonieae] C. Jeffrey [Tropicos] [details] Contributed data: Full Name Data only shown for fields conflicting with the consensus taxon record Vernonia calvoana (Hook. f.) Hook. f. ssp. usambarensis . Jeffrey [Robinson Vernonieae] Vernonia calvoana (Hook. f.) Hook. f. ssp. usambarensis C. Jeffrey [Robinson Vernonieae] Vernonia calvoana (Hook.f.) Hook.f. subsp. usambarensis C.Jeffrey [African Plant Database] Vernonia calvoana subsp. usambarensis C. Jeffrey [Tropicos] [details] Contributed data: Published Data only shown for fields conflicting with the consensus taxon record Kew Bull. 43(2): 236 (1988). [African Plant Database] Kew Bull. 43(2): 236. 1988. [Robinson Vernonieae] Kew Bull. 43: 236. 1988. [Robinson Vernonieae] Kew Bulletin 43: [Tropicos] [details] LSID urn:lsid:compositae.org:names:A58B1134-700E-4ACE-8A4D-BDA88FB4193B [details] Taxonomy ori:FTA [details]