Geyer'S Sandmat

Description

Glabrous annual, branched from the base, usually prostrate, 1-3 dm; lvs oblong to broadly elliptic, 5-10 mm, entire, broadly rounded to shallowly retuse at the apex; appendages inconspicuous, short-ovate, rarely more than twice as long as the gland (measured radially); stamens 5-17 per involucre; fr 2 mm; seeds not compressed, smooth, roundly 3-angled, 1.3-1.6 mm. Inland sandy prairies and dunes; Ind. to N.D. and e. Mont., s. to Okla., Tex., and N.M. July-Oct.(Chamaesyce g.)