Herbs annual, 30--60 cm tall, glabrous. Stems erect, terete, much branched, densely minutely brown glandular. Leaves alternate; petiole ca. 0.5 mm; leaf blade narrowly lanceolate to linear, 20--70 X 2--8 mm, abaxially glaucous, brown glandular, base cuneate, apex acute. Racemes initially coniform, gradually elongating to 4--13 cm in fruit, densely flowered; bracts subulate, 5--6 mm. Pedicel 5--10 mm. Calyx 2.5--3 mm, parted 1/2--2/3; lobes narrowly triangular, hyaline margined. Corolla white; lobes nearly free, spatulate to oblanceolate, ca. 5 mm, apex rounded. Stamens included; filaments adnate nearly to middle of corolla lobes, free parts ca. 0.5 mm; anthers ovate, dorsifixed, ca. 1 mm. Ovary glabrous; style ca. 2 mm. Capsule subglobose, 2--3 mm in diam. Fl. Jul-Aug. 2n = 24@.
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