| Author | L. | |
| Distribution | Throughout the state, except the outermost tier of Coastal Plain counties.
Native of tropical America; in N.A. ME to Man. south to FL and TX; also CA. | |
| Abundance | Uncommon in the Mountains, frequent in the Piedmont, Sandhills, and Coastal Plain. | |
| Habitat | Roadsides, railroad margins, disturbed soil, waste ground, fields, pastures, barnyards, cropfields, vacant lots. | |
| Phenology | Flowering and fruiting July-October. | |
| Identification | Spiny Amaranth has rather slender, elongate, pale green inflorescences, but the clincher is the pair of spines at each stem node. Sometimes these spines are not well-developed. | |
| Taxonomic Comments | | |
| Other Common Name(s) | | |
| State Rank | SE | |
| Global Rank | G5 | |
| State Status | | |
| US Status | | |
| USACE-agcp | FACU link |
| USACE-emp | FACU link |
