Gasteria vlokii

Assessor: Sarah Schumann

Sensitive in 2010
No
Family
Asphodelaceae
Reason for the sensitivity status
This species is known to be harvested to a small extent from the wild for the specialist horticultural trade that has not been noticed to affect the majority of the population. Several others of the genus are known to be targeted, exploited and illegally removed from the wild, causing population decline. Evidence shows that the Gasteria genus is in high demand in international horticultural trade.It has a relatively broad distribution and so recruitment and recovery from exploitation may be possible.
Exploitation extent
Small or insignificant - wild individuals of the species are known to be exploited, collected, traded or utilized in a targeted manner, but utilisation is localised and/or affects only a small proportion of the wild population.
Justification and references

According to the SANBI Red List Assessment, this species is Rare as it is range restricted, known from fewer than five subpopulations and is not threatened (van Jaarsveld et al. 2008). 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. Several species of the Gasteria genus were among those targeted and confiscated during recent criminal prosecutions of illegal plant collecting (Confiscation Lists (2021) provided by SANParks Sendelingsdrift Botanic Garden and Kirstenbosch Botanical Garden). This species is known to be harvested to a small extent from the wild for the specialist horticultural trade that has not been noticed to affect the majority of the population (Personal communication, S. Molteno, 5 August 2022).

van Jaarsveld, E.J., Vlok, J.H. & Raimondo, D. 2008. Gasteria vlokii Van Jaarsv. National Assessment: Red List of South African Plants version 2020.1.

Population vulnerability
Population is not vulnerable: size is > 2500 mature individuals, AND the number of known subpopulations is > 5 AND range > 100km2
Justification and references

This taxon has an extent of occurrence of less than 100kmĀ² and is known from fewer than five subpopulations (van Jaarsveld et al. 2008). This species is thought to be known from 11 subpopulations (Personal communication, S. Molteno, 5 August 2022).

van Jaarsveld, E.J., Vlok, J.H. & Raimondo, D. 2008. Gasteria vlokii Van Jaarsv. National Assessment: Red List of South African Plants version 2020.1.

Targeted demographics
Mature (breeding) individuals are killed, significantly weakened or are permanently removed from the wild, OR immature individuals are targeted and this significantly impacts mature (breeding) individuals.
Regeneration potential
This species has a fast population growth rate, and there is a good chance the wild populations will recover from exploitation.
Justification and references

As this species population size is not thought to be vulnerable and exploitation is occurring at a small degree, recruitment and recovery may be possible.