Reason for the sensitivity status
This species has been confiscated from illegal collection. This genus is in demand and of popular interest in international horticultural trade. A small population size with existing threats makes this species vulnerable to further population loss. Recruitment and recovery from harvesting may be poor. Releasing data on this species could exacerbate threat and vulnerability.
This species is either similar to another sensitive species or belongs to a group containing sensitive species, and is extremely rare in the wild. The localities of wild populations need to be protected to avoid loss to exploitation, which, due to its rarity, could drive the species to extinction within a very short time.
Exploitation extent
Uncertain - No data exists yet showing that this species is exploited in the wild, however it has one or more relatives or look-alike species (found in South Africa or globally) that are known to be utilised. This species has a similar life form or other relevant traits to its exploited relative(s), making it highly likely that it would be exploited for the same purposes.
Justification and references
According to the SANBI Red List Assessment, this species is Vulnerable as it is rare, poorly known from one location and is potentially threatened by habitat degradation (Raimondo & von Staden, 2015). This genus is in demand and of popular interest in international horticultural trade, as indicated by several online marketplace, e-commerce and auction sites. Colchicum cuspidatum has been confiscated from illegal collection (Confiscation list (2020) Cape Nature). This suggests that this genus may be targeted and that this species may be at risk.
Raimondo, D. & von Staden, L. 2015. Colchicum henssenianum (U.Müll.-Doblies & D.Müll.-Doblies) J.C.Manning & Vinn. National Assessment: Red List of South African Plants version 2020.1.
Population vulnerability
Population is vulnerable: size is <= 2500 mature individuals OR the number of known subpopulations is <= 5 OR range is <= 100km2 OR species at risk of localised extinctions
Justification and references
This taxon is known from one location and is possibly overlooked (Raimondo & von Staden, 2015).
Raimondo, D. & von Staden, L. 2015. Colchicum henssenianum (U.Müll.-Doblies & D.Müll.-Doblies) J.C.Manning & Vinn. National Assessment: Red List of South African Plants version 2020.1.
Targeted demographics
Unknown.
Regeneration potential
This species has a slow population growth rate, or the growth rate varies depending on habitat, and there is a poor chance the wild populations will recover from exploitation OR a collector might feasibly harvest the entire extant population removing the chance of subsequent recruitment.
Justification and references
A small population size with existing threats makes this species vulnerable to further population loss. Recruitment and recovery from harvesting may be poor.
