Mzansi's mountain hemlocks: The identities of Hilliard and Burtt's Conium species 3 and 4 (Apiaceae) and a revised key for the genus in sub-Saharan Africa
Assess taxonomic status of Conium species 3 and 4. Describe a new species, C. hilliburttorum Magee and V.R. Clark. C. hilliburttorum is a cliff-base specialist and a conservation status of Vulnerable is recommended. Range extensions for C. fontanum and C. sphaerocarpum. Key to the five species of Conium in sub-Saharan Africa.