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Information Stems about 1 ft. long, erect, glabrous, winged towards the base; branches numerous, slender, erect, deeply sulcate. Leaves reduced to ovate acute scales 1–1 1/2 lin. long, membranous and with stout keel. Flowers in long lax terminal spikes; bracts and bracteoles ovate, acute, 1–1 1/2 lin. long, membranous, keeled. Perianth about 3/4 lin. long; lobes 1/2 lin. long, elliptic-ovate, subacute, glabrous. Anthers 1/4 lin. long. Style nearly 1/2 lin. long. Fruit turbinate, 1 1/2 lin. long, with prominent ribs and transverse reticulations.

Information Annual herb with a small taproot; stem up to 30–60 cm tall, virgately branched above, nearly leafless; ribs raised and terminating in midribs of scale leaves and bracts. Leaves: developed leaves only 2 near base of stem, opposite, linear, ± 15x0.4–0.5 mm, acute, involute above; scale leaves closely appressed, lanceolate, ± 1.5–3x1–1.5 mm, acuminate, midrib strongly raised beneath. Flowers either solitary or in very compact 3-flowered cymules, sessile, 10–30 in laxly branched spikes that may grow out into sterile scaly tips; bracts lanceolate, 1.5–3.5x1.7–2 mm, acuminate, margins membranous, somewhat erose, midrib strongly raised on outer surface; bracteoles 2, similar, sometimes slightly larger. Perianth yellow-green; tube 0.4–0.5 mm long, with glands no more than slight swellings below sinuses of lobes; lobes triangular, 0.8–1.1 mm long, subacute, margins inflexed, sometimes slightly erose near base. Stamens inserted at base of perianth lobes; filaments 0.3–0.5 mm long, nearly hidden by anthers or visible; anthers 0.4–0.7 mm long. Style ± 0.8–1 mm long; stigma reaching top of anthers. Fruit bright red-brown, obovoid, 3–4 mm long, 2.5–3 mm in diameter, strongly ribbed and reticulate. Fig. 1/4, 5 (page 4).

Information Annual herb with a small taproot; stems green to grey-green, 1(–few) from a taproot, erect, 0.3–1 m tall, virgately branched above, nearly leafless; ribs expanding into flattened wings up to ± 1 mm broad and terminating in the midribs of the bracts. Leaves: developed leaves only 2 near base of stem, opposite, linear, 20–30x1–1.4 mm; cauline leaves alternate, reduced to scales, closely appressed, lanceolate, 1–2x0.4–0.8 mm, acuminate, midrib strongly raised beneath. Flowers solitary in axils of bracts, sessile, 10–50 in lax spikes, laxly panicled; bracts linear-lanceolate, 1–1.5x0.4–0.6 mm, acuminate; bracteoles 2, similar but smaller than bracts. Perianth yellowish, white inside; tube 0.5–1 mm long, with glands lacking or no more than small swellings between the lobes; lobes triangular, 0.6–1.2 mm long, subacute, margins inflexed, membranous, ± erose. Stamens inserted at base of lobes; filaments 0.2–0.5 mm long, almost hidden by anthers, anthers 0.6–0.8 mm long. Style 0.8–1.6 mm long; stigma reaching top of anthers. Fruit pallid, ellipsoid-globose to globose, 3–4 mm long, 2.5–4 mm in diameter, strongly ribbed and reticulate, the reticulations rather more strongly raised than the ribs, dendroid-ruminate. Fig. 1/1–3 (page 4).