Haworthiopsis nigra var. elongata

Assessor: Sarah Schumann

Sensitive in 2010
No
Family
Asphodelaceae
Reason for the sensitivity status
This variety is thought to be a potential target for wild collection for horticultural purposes. Several others of the genus are known to be targeted, exploited and illegally removed from the wild, causing population decline. Evidence shows that the Haworthiopsis genus is in demand in international horticultural trade. One known subpopulation makes this taxon vulnerable to population loss. Releasing data on this variety 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

This variety is not Red List evaluated. This taxon has not been seen within the last decade but is a potential target to collection for the horticultural trade (S. Molteno, personal communication, 12 August 2022). Several others of the genus were among those targeted and confiscated during recent criminal prosecutions of illegal plant collecting (Confiscation Lists (2019-2022) provided by Cape Nature, SANBI Kirstenbosch Botanical Garden and SANBI Karoo Desert Botanic Garden). This genus is in demand and of popular interest in horticultural trade, as indicated by several online marketplace, e-commerce and auction sites. 

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 subpopulation (S. Molteno, personal communication, 12 August 2022).

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

One known subpopulation makes this taxon vulnerable to population loss. Were exploitation to occur, recruitment and recovery may be poor.