Sutherlandia is a genus of in the family Fabaceae containing six known living species. The genus was once organized as having a single species, S. frutescens, but later expanded to include more based on morphological characteristics. However, later analysis found more genetic variation between populations than between taxa.[
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The genus Sutherlandia is sometimes included in the genus Lessertia and it is morphologically and chemically similar to Lessertia, Astragalus, and other genera of the tribe Galegeae.[
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Species
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Sutherlandia frutescens (L.) R.Br. cancerbush, balloon pea (Australia, Botswana, Kenya, Lesotho, Mauritius, Namibia, South Africa)
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Sutherlandia humilis E.Phillips & R.A.Dyer (South Africa)
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Sutherlandia microphylla Burch (Botswana, Namibia, South Africa)
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Sutherlandia montana E.Phillips & R.A.Dyer (Lesotho, South Africa)
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Sutherlandia speciosa E.Phillips & R.A.Dyer (South Africa)
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Sutherlandia tomentosa Eckl. & Zeyh. (South Africa)
