Erect to ascending annuals or perennials, glabrous, inodorous, tap-rooted. Leaves 2-pinnatisect; leaflets filiform. Inflorescence racemose, globular or elongate, many-flowered. Bracts equal to or exceeding the pedicel which is reflexed in fruit. Flowers zygomorphic. Sepals lateral, basally attached. Petals entire; upper petal with short, inflated spur; inner pair of petals united along lower margin. Stamens 6. Style dilated into 2 lobes below the paired stigmatic arms. Fruit nut-like, indehiscent, 1-seeded, flattened.
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