Herbs perennial. Stems ascending, robust, to 6 cm, rooting at base. Leaves (3 or)4-verticillate; leaf blade narrowly lanceolate, 8-14 × 2-2.5 mm, base spurred, apex acute. Cyme 3-branched, scorpioid, ca. 4 cm in diam.; branches 2-forked. Flowers sessile, unequally 5-merous. Sepals narrowly lanceolate-oblong, unequal, 3-5 × ca. 1 mm, base spurless, apex obtuse. Petals yellow, apex mucronate. Stamens 10; antepetalous ones ca. 3 mm, inserted ca. 1.5 mm from petal base; anthers blackish, ca. 1 mm. Nectar scales spatulate-oblong, ca. 0.4 × 0.3 mm, base slightly narrowed, apex obtuse. Carpels stellately divergent at maturity, narrowly lanceolate, 3-3.5 mm. Fl. May, fr. Jun-Jul.
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