Spiny Amaranth
Amaranthus spinosus
Family: AmaranthaceaeNative: Tropical AmericasIdentified: Apr 10, 2026
An upright annual herb characterized by sharp spines at the leaf axils and long, greenish or brownish-gold terminal flower spikes. It has a branched stem and simple, ovate-lanceolate leaves.
Learn more about Spiny Amaranth in the encyclopedia →Care instructions
Thrives in full sun and well-drained soil. It is highly drought-tolerant and often grows as a weed in disturbed soils, roadsides, and agricultural fields. Requires little to no maintenance once established.