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Amaranthus spinosus
Also called Thorny Amaranth, Prickly Callaloo, Prince Of Wales Feather, Carelessweed, Edlebur, Needlebur, Prickly Amaranth
Spiny amaranth is an annual weed native to the tropical Americas, now spread worldwide and considered invasive, with spines at the leaf nodes and spiky flower clusters. It grows quickly from seed in warm, open ground, so it is usually managed as a weed rather than grown as an ornamental.
Amaranthus spinosus, commonly known as the spiny amaranth, spiny pigweed, prickly amaranth or thorny amaranth, is a plant native to the tropical Americas. Spread worldwide as a weed, it is an aggressive invasive species toxic to livestock. It is a serious weed interfering with rice cultivation in Asia.
Greenstripe · Prostrate pigweed · Mat amaranth · Purple amaranth · Brown's amaranth · Love-lies-bleeding · Red amaranth · Spleen amaranth · Mediterranean amaranth · Slim amaranth · Prince-of-Wales feather · African amaranth
Text excerpted from the Wikipedia article Amaranthus spinosus by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
