Compilation
Sisymbrium murale

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.