Plant · GBIF taxon 3974754
Sweet Thorn
Vachellia karrooAlso known as Karoo Thorn, Cape Gum, Cockspur Thorn, Common Acacia
Sweet thorn transforms arid southern African landscapes during early summer with profuse, honey-scented golden flower puffs that attract swarms of insect pollinators. Paired white spines protect its protein-rich leaves from heavy browsing, while deep taproots seek groundwater in drought-prone soils. The tree fixes atmospheric nitrogen through root nodules, enriching poor soils and acting as a pioneer nurse plant across degraded veld.
DeciduousNitrogen-FixingFlowering

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Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Diet & prey
- Autotrophic (photosynthesis)
Predators
- Giraffe
- Greater Kudu
- African Elephant
ThreatsBush encroachment clearing, habitat alteration, and overbrowsing
HabitatsSavannas, woodlands, grasslands, riverbanks, and arid scrublands
Life span30–40 years
Size / weightNot available
Classification
- OrderFabales
- FamilyFabaceae
- GenusVachellia
- SpeciesVachellia karroo
Range data is not available yet.
Interaction riskLow
- Low
- Moderate
- High
- Very high
- Why interaction risk is low
- Safe to observe at a normal distance; watch out for long, sharp pairs of thorns.
Responsible observation
- Thorn Awareness: Mind the long, straight pairs of white spines when walking near low branches.
- Pollinator Watching: Inspect blooming branches in early summer to spot hundreds of visiting insects.
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