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Annuals or perennials, (short-lived, frequently scapose or subscapose, taprooted), strongly scented (with glucosinolates). Stems ascending to suberect, (0.5-)2-5(-6) dm, moderately pubescent (trichomes predominantly patent basally, retrorse distally to near racemes). Basal leaves (rosulate); blade elliptic to obovate, 2-9 cm × 10-35 mm, margins sinuate to pinnatifid, lyrate, [2-4(-6) lobes each side], (margins and veins glabrescent to sparsely pubescent). Cauline leaves shortly petiolate to sessile; blade margins entire or dentate. Fruiting pedicels (3-) 8-20(-37) mm. Flowers: sepals 3-5.5 mm, pubescent or glabrous, trichomes straight; petals yellow, 5-8(-10) × 3-5 mm; filaments 3.5-6 mm; anthers 1.5-2 mm; gynophore obsolete or to 0.5 mm. Fruits erect-patent, (1.5-)2-4 cm × 1.5-2.5 mm; terminal segment beaklike, (1-)1.5-3 mm, seedless; (ovules 20-36 per ovary). Seeds 0.9-1.3 × 0.6-0.9 mm. 2n = 42.
Foetid annual or biennial; stems ascending to erect, branching, leafy or not, (10)-30-40-(60) cm tall, glabrous or hairy with sparse stiff reflexed hairs. Lvs mostly basal, glaucescent, very variable, long-petiolate, glabrous to sparsely hairy; lower lvs obovate with sinuate margins to pinnatifid with entire or shallowly toothed margins, (3)-5-15 × 1-4 cm; upper lvs similar in shape, usually smaller. Racemes glabrous or sparsely hairy, 10-30-(60) cm tall. Pedicels 0.5-2 cm long. Sepals narrow-triangular, glabrous or sparsely hairy, 3.5-4 × 1-2 mm. Petals yellow, spathulate, shortly clawed, 3-7 × 2-4.5 mm. Silique 20-40-(45) × 1.5-2.5-(3) mm, without gynophore; beak seedless. Seeds oblong, brown, 1-1.5 mm long.
Annual or biennial herb, erect or ascending, 10–60 cm tall, with simple or branched flowering scapes, sparsely hairy towards base, the hairs simple, stiff. Leaves very variable, basal, rarely cauline, toothed or with triangular lobes, petiolate, foetid when crushed. Sepals 3–4.5 mm long, half-spreading. Petals 4–9 mm long, lemon-yellow, abruptly clawed. Ovary sessile. Siliqua mostly 3–4 cm long, 1–3 mm wide, spreading on pedicels mostly 4–20 mm long; beak seedless, narrowly conical, 2 mm long. Seeds c. 1 mm long, yellow-brown.
Glabrous or sparsely hairy annual (to perennial), erect or decumbent, 2–5 dm, branched from base; lvs chiefly at or near the base, oblanceolate, long-attenuate below, toothed to sometimes pinnatifid; lower pedicels becoming remote and 1–1.5 cm; pet yellow; frs ascending, 2–4 cm × 2 mm, not stipitate; 2n=42. Native of Europe, naturalized in waste places, especially in sandy soil, in much of the n. part of our range and westward. May–Sept.
A cabbage family herb. It is an annual plant. It is an erect plant. It grows 8-60 cm high. It has hairs on the lower stem. The leaves are narrowly oval and 2-9 cm long by 1-4 cm wide. The flowers are pale yellow.
