Several species occur in very large populations over large areas (several more than 10,000 km2).
This includes Hoodia Gordonii, which is the species currently most sought after for trade in weight reduction products.
There are, however, other closely related species that are less prolific, occurring in isolated patches with an overall low density, and a relatively small distribution range (less than 1,000 km2).
A relatively common feature is that most species have patchy distributions. The conservation risk classification for species that have been assessed using the IUCN 2001 criteria are given in the table below (as in the 1997 Red List and separate updates for the species that have been assessed using the IUCN’s 2001 criteria).
Ten of the 16 taxa assessed have been classified as threatened in the latest Red List.
Data assessments for those taxa.
TAXON NAME STATUS 1997 STATUS 2002
Hoodia alstonii (N.E.Br.) Plowes nt
H. currorii (Hook.) Decne. subsp. lugardii (N.E.Br.) Bruyns nt
H. dregei N.E.Br. R
H. flava (N.E.Br.) Plowes nt
H. gordonii (Masson) Sweet ex Decne. nt
H. juttae Dinter R VU
H. officinalis (N.E.Br.) Plowes subsp. delaetiana (Dinter)
Bruyns R VU
H. officinalis (N.E.Br.) Plowes subsp. Officinalis nt
H.pilifera (L.f.) Plowes subsp. annulata (N.E.Br.) Bruyns R
H. pilifera (L.f.) Plowes subsp. Pilifera R
H. pilifera (L.f.) Plowes subsp. pillansii (N.E.Br.) Bruyns V
H. ruschii Dinter I VU
H. triebneri (Nel) Bruyns R VU
References
BO = Botswana , NA = Namibia , ZA = South Africa , ZM = Zimbabwe EN = Endangered, VU = Vulnerable, LR = Low Risk, LC = Least Concern (IUCN categories of threat, 1994) R = Rare, V = Vulnerable, I = Indeterminate, nt = not threatened (IUCN categories of threat, pre-1994)
Source CITES
Buy Hoodia Gordonii, Aloe, Chia and Noni in Spain at Dieta Hoodia