Plants annual; taproot filiform to slender. Stems erect, dichot-omously branched, 3-40 cm, ultimate branches filiform, gla-brous. Leaves: stipules subulate to lanceolate, 0.5-4 mm, apex acuminate, entire; blade usually dotted or blotched, elliptic to obovate, 3-30 × 1-11 mm, herbaceous, apex acute to obtuse or cuspidate, glabrous. Cymes diffuse, flowers solitary (paired) in axils of leafy bracts. Flowers 5-merous, ± short-cylindric, with enlarged hypanthium and calyx cylindric, 0.9-1.3 mm, glabrous; sepals greenish to brownish, midrib and lateral pair of veins prominent, ovate to oblong, 0.5-1 mm, herbaceous, margins white to translucent, 0.03-0.1 mm wide, scarious, apex terminated by mucro, hood rounded-triangular, mucro triangular, 0.07-0.15 mm, glabrous; staminodes absent or indistinct; styles 2, 0.2-0.3 mm. Utricles ovoid to globose, ca. 0.5 mm, granular in distal 1/ 2, glabrous.
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Glabrous annual with slender, erect, forking stems and almost capillary ultimate branches; lvs 5–30 × 2–8 mm, elliptic to oval, thin, entire, usually punctate; infl diffuse; cal 1–1.5 mm; sep oblong-ovate, scarious-margined, 1-nerved, flat, the apiculate hood very short; fr exceeding the sep, obovate-spheroid, granular at the tip; styles short, free nearly to the base, recurved; plants not highly variable. Sandy soil and open places; N.H. to Minn., s. to Va., Ga., Ala., Mo., and Kans. June–Sept. (Anychia c.)
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