Plants of South Eastern New South Wales

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Sisymbrium orientale

Common name

Indian hedge mustard

Family

Brassicaceae

Where found

Weed of woodland, pastures, grasslands, crops, coastal environs, roadsides, disturbed sites, and waste areas. Widespread.

Notes

Introduced annual or biennial herb to 1.3 m tall, hairy with soft hairs pointing down. Basal leaves not persisting, to 11 cm long, flat, hairy, deeply dissected with triangular lobes, margins toothed. Stem leaves alternating up the stems, hairy, tips pointed, the lowest leaves with pointed basal lobes, upper leaves becoming lance head shaped and entire. Flowers with 4 yellow petals each 6–10 mm long, in clusters at the tops of the stems, which elongate as the 'pods' mature. Flowers mostly spring–summer. 'Pods' 4–10 cm long, 1–2 mm wide, thick-walled; stalks spreading, 3–10 mm long.

PlantNET description: http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Sisymbrium~orientale (accessed 7 February, 2021)