Sisymbrium altissimum L. APNI* 
Description: Annual to 100 cm high, usually scabrous at base.
Basal leaves to 10 cm long, pinnatisect with 5–7 pairs of lobes; upper leaves pinnatisect with the terminal lobe linear, ± sessile.
Inflorescence without bracts. Sepals 4–5 mm long, glabrous or sparsely bristly, outer sepals horned. Petals 5–8 mm long, yellow to pale yellow. Style plus 2-lobed stigma 1–3.5 mm long. Siliqua linear, spreading, 5–10 cm long, 1–1.5 mm wide; pedicel spreading, 3–10 mm long.
Distribution and occurrence: Native of Asia & Eur.
NSW subdivisions: *NWS, *CWS, *NWP, *SWP
Text by L. Retter & G. J. Harden
Taxon concept: Flora of NSW 1 (1990)
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.
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