



Sweet Thorn
Vachellia karroo (Hayne) Banfi & Galasso
- light
- Full sun
- water
- —
- tall
- 11 m
- wide
- 12 m
Fabaceae
Also called Sweetthorn, Cape Mimosa, Cape Acacia, Sweet Thorn Acacia, Acacia
Formerly Acacia dekindtiana, Acacia hirtella, Acacia inconflagrabilis, Acacia karroo, and 3 more
When it flowers
Not known yet in the tropics: too few flowering observations to read a season from.
Read from iNaturalist photographs of it in flower. A month counts at 50% of the best month's flowering share (smoothed over three months) and 10% of its flowering count, from at least 100 flowering observations in the band.
If a child, a pet or anyone may have eaten a plant, contact a doctor or vet straight away, or call the National Poisons Information Centre (AIIMS, New Delhi) on 1800 116 117, free and open 24 hours.
Something wrong with it?About it
- Grows as
- Shrub or treeKew's checklist, not yet checked
- Climate
- Desert or dry shrublandKew's checklist, not yet checked
- Wild in
- S. Trop. & S. AfricaKew's checklist, not yet checked
- Light
- Full sun (6 h or more)Read from The Plant Library, one source
- Height
- 11 mRead from Wikipedia and Plants for a Future, checked: the middle of what its sources sayHalfway between its 2 sources, which differ. Sources differ: Wikipedia 12–12 m; Plants for a Future 10–10 m
- Spread
- 12 mRead from Plants for a Future, one source
- Flowers
- YellowRead from The Plant Library and Wikipedia, checked by a majority of its sourcesBacked by both sources
- Coldest it survives
- -1.1 °C (USDA zone 10a)Read from Plants for a Future, one source
Not known yet: water, heat, hottest it survives.
In other languages (12)
- Italian
- acacia orrida
- Portuguese
- espinheiro-karro
- French
- mimosa odorant
- root
- mokha, mooka, mookana
- Arabic
- سنط كارو, شوكة حلوة
- Afrikaans
- Soetdoring, doornhout, Doringboom
- Chinese
- 甜刺金合歡
- Spanish
- Aromo Sudafricano
- German
- Karoo-Dorn, Weissdorn
- Hebrew
- שיטה חד-קרנית
- Russian
- Вачеллия карру
- Czech
- Akácie dlouhotrnná
Where this comes from
- iNaturalist, read 2026-10-25, CC0-1.0 (observation counts)
- Kew's checklist, read 2026-10-24, CC-BY-4.0
- The Plant Library, read 2026-10-25, fact, cited
- Wikipedia, read 2026-10-25, fact, cited
- Plants for a Future, read 2026-10-26, fact, cited
- Wikimedia Commons, read 2026-10-25, CC BY-SA 3.0
- iNaturalist, read 2026-10-25, CC0
- iNaturalist, read 2026-10-25, CC0
- iNaturalist, read 2026-10-25, CC BY
- 3D model: Vachellia karroo (built for Vanagrha) by Vanagrha, own
A fact “checked by a majority of its sources” was settled by a vote of the pages it was read from, not by a person reading it; one marked “one source” rests on that page alone. Anything else not marked checked has not been checked yet. Where nothing is known, the page says so rather than guess.