Herbs, annual, ± glaucous. Leaves numerous; petiole 2-6 cm, shortly and broadly vaginate at base; blade narrowly oblanceolate, 5-10 × 1.5-2.5 cm, pinnate; primary leaflets in 4-6 pairs, almost sessile, broadly ovate, 0.4-2 cm, pinnatifid; lobules lanceolate, ovate, or narrowly elliptic to obovate, 3-4 mm, apex acute. Flowering stems several, 10-23 cm, dichotomously branched; bracts paired, 0.5-2 cm, lower ones biternate to sub-bipinnatisect, gradually smaller and less divided upward. Sepals green, ovate or ovate-lanceolate, 3-4 × 2-3 mm, margin membranous, subentire. Outer petals white, with tip of keel greenish, 11-12 × 9-10 mm, very shallowly 3-lobed; inner petals ?orange, 3-parted to less than 1/2; lateral lobes not divergent, broadly oblong, apex obtuse; middle lobe broadly elliptic, ca. 4 mm, sessile, almost entire. Stamens with prominent nectaries at base; anthers 3-3.5 mm. Ovary with 24 ovules. Fruit and seeds unknown. Fl. Jul.
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