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Ceropegia leptophylla

Assessor: Sarah Schumann

Sensitive in 2010
No
Family
Apocynaceae
Reason for the sensitivity status
This genus is in demand and of popular interest in international horticultural trade. Other species from this genus are known to be threatened by harvesting of wild individuals for horticultural purposes. A small population size makes this species vulnerable to further population loss. Were exploitation to occur, recruitment and recovery 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 Critically Rare as it is rare, poorly known and not thought to be threatened (von Staden, 2016). 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. Other species from this genus are known to be threatened by harvesting of wild individuals for horticultural purposes (Victor, 2005). 

Victor, J.E. 2005. Ceropegia craibii J.Victor. National Assessment: Red List of South African Plants version 2020.1.

von Staden, L. 2016. Ceropegia leptophylla Bruyns. 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 species is only known from its type collection, is suspected to be rare and its population status is unknown as it occurs in remote, poorly explored areas (von Staden, 2016).

von Staden, L. 2016. Ceropegia leptophylla Bruyns. 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 makes this species vulnerable to further population loss. Were exploitation to occur, recruitment and recovery may be poor. 

Reference file
Amazon.co_.uk _ Ceropegia.pdf537.77 KB
Ceropegia leptophylla Threatened Species Programme _ SANBI Red List of South African Plants.pdf530.94 KB
Ceropegia search results.pdf1.18 MB