amaranthus spinosus(n = noun.plant) thorny amaranth - erect annual of tropical central Asia and Africa having a pair of divergent spines at most leaf nodes;
is a kind of herb, herbaceous plant
is a member of amaranthus, genus amaranthus

amaranthus, amaranthus albus, amaranthus caudatus, amaranthus cruentus, amaranthus graecizans, amaranthus hybridus erythrostachys, amaranthus hybridus hypochondriacus, amaranthus hypochondriacus, genus amaranthus