Family: Apocynaceae
Origin, Description & Uses:
Hoodia currorii, commonly known as ghaap or hoodia cactus, is native to arid regions of southern Africa, including Namibia and Angola. Despite its common name, it is not a true cactus but a succulent adapted to harsh desert conditions. It has thick, fleshy, upright stems covered in small spines and produces striking, flesh-colored flowers with a strong odor that attracts pollinators such as flies. Traditionally, Indigenous San peoples have used Hoodia species as an appetite suppressant during long hunting trips. Today, it is sometimes cultivated as a specialty ornamental plant and has drawn interest for its potential use in dietary supplements, though commercial use is regulated in some regions.
Risks & Threats:
Hoodia currorii is considered low risk in Hawaiʻi due to its very specific environmental requirements, particularly its need for dry, desert-like conditions that are not widely found in the islands. It does not show strong tendencies to spread aggressively or naturalize in tropical environments. However, as with any introduced species, there is always some uncertainty. Care should be taken to prevent unintended spread, especially in dry, disturbed areas where it might establish. Gardeners are encouraged to monitor plantings and report any unusual behavior, helping ensure that this species remains a safe and manageable addition to cultivated landscapes.
High Risk Traits:
- Able to grow in regions with tropical climates
- Spiny
- Reproduces by wind-dispersed seeds
- May be able to produces interspecific and intergeneric hybrids
- Limited ecological information may reduce accuracy of risk prediction
Low Risk Traits:
- No reports of invasiveness or naturalization, but introduction outside native range may be limited
- Valuable medicinal plant
- Susceptibility to bacterial and fungal rot, mites and mite transmitted diseases may limit ability to escape and spread in the Hawaiian Islands
- Possibly self-incompatible
- Not reported to spread vegetatively
