The World Flora Online

Perennials, (usually suffrutes-cent, roots with shoots from adventitious buds), strongly scented (with glucosinolates), (glaucescent). Stems erect, 2-7(-10) dm, glabrescent or sparsely pubescent basally. Basal leaves: blade elliptic to obovate, 2-15 cm × 10-60(-80) mm, margins sinuate to deeply pinnatifid, (2-5 lobes each side). Cauline leaves petiolate; similar to basal, (distal cauline shortly petiolate, blade similar, with narrower segments), surfaces usually glabrescent. Fruiting pedicels 8-35 mm. Flowers: sepals 4-6 mm, glabrous or pubescent, trichomes straight; petals yellow, 7-11(-13) × 5-8 mm, (apex rounded); filaments 4-8 mm; anthers 2.5-3 mm; gynophore 0.5-3 mm. Fruits usually erect, rarely ascending, (somewhat torulose, slightly compressed), 2-5 cm × 1.5-2.5 mm; terminal segment (stout), beaklike, 1.5-3 mm, seedless; (ovules 20-32(-46) per ovary). Seeds 1-1.3 × 0.6-0.9 mm. 2n = 22.

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• 1
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Glabrous or subglabrous, taprooted perennial (but sometimes blooming the first year), erect, 3–8 dm; lvs mostly cauline but below the middle of the stem, somewhat fleshy and glaucous, foetid when crushed, oblanceolate to narrowly oblong, toothed to more often deeply pinnatifid; lower pedicels becoming remote and 2–3 cm; pet yellow; frs ascending, 2–5 cm, the base of the valves elevated 1–2 mm above the scars of the perianth; 2n=22. Native of Europe, established as a weed in waste places here and there in our range, especially northward, and in w. U.S. May–Sept.

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• 5
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30–60 cm hoch, ± kahl. Stängel am Grund verholzt, aufrecht oder aufsteigend, bis über die Mitte beblättert. Blätter tief fiederteilig, mit ± linealen Abschnitten, die obersten oft ungeteilt. Kronblätter schwefelgelb, 8–14 mm lang, kurz be

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• 4
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5–9. Wegränder, Schuttplätze, kollin-montan. Besonders VS, sonst zerstreut und unbeständig.

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• 4
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