Reason for the sensitivity status
This taxon is sensitive as it has a small population size and is not known to be threatened by illegal collection of wild individuals but there is evidence that this genus is being targeted and exploited for horticultural trade with individuals from several species being illegally removed. Were exploitation to take place, recruitment and recovery may be poor due to its few known locations of occurrence and other potential threat. Releasing data on this species can 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 known from four locations and is potentially threatened by habitat degradation (von Staden, 2015). This genus is currently in demand and of popular interest in international horticultural trade, as indicated by several online marketplace, e-commerce and auction sites. Plants of this genus are known to be utilized and were among those targeted and confiscated during recent criminal prosecutions of illegal plant collecting (Confiscation Lists (2020-2021) provided by Cape Nature, SANBI Kirstenbosch Botanical Garden, SANBI Karoo Desert Botanic Garden, SANParks Sendelingsdrift Botanic Garden and Department of Forestry, Fisheries and the Environment). This suggests that this genus may be targeted and that vulnerable species may be at risk to over-exploitation and removal from the wild.
von Staden, L. 2015. Tylecodon viridiflorus (Toelken) Toelken. 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 has an extent of occurrence of 183 km² and is known from four locations (von Staden, 2015).
von Staden, L. 2015. Tylecodon viridiflorus (Toelken) Toelken. 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
Range restriction, few known locations and potential existing threat (von Staden, 2015), places the persistence of this species at risk. Were exploitation to also occur, recruitment and recovery may be poor.
von Staden, L. 2015. Tylecodon viridiflorus (Toelken) Toelken. National Assessment: Red List of South African Plants version 2020.1.
