Herbs annual. Stems ascending or decumbent, 20-50 cm tall, slender, usually branched from base, glabrous, rooting at lower nodes; internodes 2-3 cm. Petiole very short or nearly absent; leaf blade narrowly lanceolate, 3-6 cm × 4-8 mm, both surfaces pubescent or glabrate, appressed hispid along midvein, base usually rounded, margin shortly ciliate, apex acute; ocrea tubular, 8-10 mm, membranous, sparsely appressed hispid, apex truncate, ciliate, cilia 2-4 mm. Inflorescence terminal or axillary, spicate, erect, dense, 2-3 cm; bracts funnel-shaped, margin largely ciliate, each 2-4-flowered. Pedicel 1-1.5 mm. Perianth rose-pink, 5-parted; tepals elliptic, 1-1.5 mm. Stamens 5 or 6. Styles 2; stigmas capitate. Achenes black, shiny, ovoid, biconvex, 1-1.5 mm. Fl. May-Sep, fr. Jun-Oct.
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A herb. It grows 25 cm high. The leaves are dark green above and more pale underneath. The leaves are sword shaped and taper to the tip. The leaves gives a scent when crushed.
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