Gomphrena parviceps Standl.

Gomphrena parviceps Standley, Contr. U. S. Nat. Herb. 18: 92
1916.
Gomphrena decumbens Pringlei Stuchlfk, Repert. Sp. Nov. 11: 156, in part. 1912. Not G. Pringlei Coult. & Fisher, 1892.
Prostrate or procumbent annual, much branched; stems 1-3 dm. long, slender or stout, often tinged with red, appressed-pilose; leaves numerous, subsessile, the blades oblong or spatulate, 1-3.5 cm. long, 0.4r-l cm. wide, rounded or obtuse at the apex, acutish at the base, green, appressed-pilose beneath, glabrate above; heads solitary or glomerate, terminal or axillary, subglobose, 7 mm. in diameter, each spike or cluster of spikes subtended by 2 or several sessile leaves, these usually 2-3 times as long as the heads; bracts broadly ovate, acuminate; bractlets 3 mm. long, scarious, white, tinged with pink, twice as long as the bracts,
narrowly cristate at the apex, the crest obscurely denticulate, pink or white; perianth conspicuously exceeding the bractlets, the lobes oblong, obtuse, truncate, oremarginate at the apex, the outer ones subcoriaceous, white or pink, glabrous, the inner ones thin, brightgreen except along the margin, very sparsely lanate; stamen-tube about equaling the perianth; style elongate, the stigmas filiform; seed ovoid, 1.5 mm. long, reddish-brown.
Type locality: Valley of Mexico, Federal District, Mexico, at an altitude of 2190 meters Distribution : Valley of Mexico.