Annuals or, rarely, perennials, (compact, rarely sprawling). Stems erect, or, rarely, prostrate, (much-branched), to 8 dm. Cauline leaves: blade ovate to spatulate, or (distal) oblanceolate (less lobed), (smaller distally), margins crenate, dentate, or sinuate (not pinnatifid). Racemes 1–2 dm, (congested); rachis straight. Fruiting pedicels 1.8–8 mm. Flowers: sepals 3.5–5 mm, lateral pair not saccate basally; petals white to pale lavender, (well-developed or reduced to bristles), 4.6–9.7 × 1.5–3 mm, claw not distinct. Fruits (4-angled or 8-ribbed), cylindrical, 12–29 × 3–9 mm; proximal segment terete, (5–10 mm); terminal segment fusiform to turbinate, (7–15 mm), (beak flattened), apex acute, blunt, or retuse. Seeds: cotyledons accumbent to, sometimes, incumbent.
