Pringle's Amaranth

Amaranthus pringlei S. Wats. Proc. Am. Acad. 22: 476. 1887
Stems stout, erect, 2-10 dm. high, much branched, angled, glabrous, often tinged with red; petioles stout, 3-25 mm. long; leaf -blades elliptic to oblong or linear-oblong, or the uppermost linear, 1.5-4,5 cm. long, obtuse or rounded at the apex, cuneate at the base, glabrous, yellowish-green; flowers monoecious, in dense glomerules, part of these axillary but most of them aggregated into stout erect spike-like terminal panicles; bracts oblong or oblong-linear, acute, spinetipped, rigid, equaling or exceeding the flowers; sepals 5, those of the staminate flowers oblong, acute, those of the pistillate flowers broadly spatulate, 1.5-2 mm. long, united at the base, emarginate or apiculate, thin, 1 -nerved, often tinged with purple; stamens 3; utricle globose-obovoid, circumscissile near the middle; seed nearly orbicular, black and shining, about 1 mm. in diameter.
Type locality: Rocky hills near Chihuahua, Chihuahua.
Distribution: In fields and canyons, western Texas to Nevada, Sonora, and San Luis Potosl.