Botanical name: Amaranthus spinosus Family: Amaranthaceae (Amaranth family)
Prickly Amaranth is an annual herb with sometimes red tinged erect stems, sometimes ascending, 30-150 cm long, usually branched. Leaves ovate to rhombic-ovate, elliptic, lanceolate-oblong, or lanceolate, blades 1-12 cm long, 0.89-6 cm wide, smooth, leaft stalk 1-9 cm long. Flowers green, in axillary clusters in the lower part of the plant and in unbranched or branched spikes in the upper part, the lower clusters entirely without stamens as are the lower flowers of the spikes, the upper flowers in the spikes staminate.
The flower labeled Prickly Amaranth is ...