Plants of South Eastern New South Wales
Hirschfeldia incana
Common name
Hairy brassica, Buchan weed, Hoary mustard, Hairy mustard
Family
Brassicaceae
Where found
Grassy areas, disturbed sites, fence lines, and roadsides. Widespread.
Notes
Introduced annual or biennial herb to 1 m tall. Stems hairy or bristly. Leaves basal and alternating up the stems, to 35 cm long, hairy or bristly, margins lobed and/or toothed. Upper leaves becoming smaller and entire up the stems. Flowers with 4 petals each 6-9 mm long, yellow, often with purple veins, in clusters. Flowers Sep.–Jan. Flattened seed cases with a swollen beak usually containing a single seed.
PlantNET description: http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Hirschfeldia~incana (accessed 19 January, 2021)
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