Plants of South Eastern New South Wales
Brassica oleracea
Common name
Cauliflower, Collards
Family
Brassicaceae
Where found
Occasionally naturalised. Mainly Sydney area. Occasionally elsewhere.
Notes
Introduced biennial or perennial herb to 3 m high. Leaves more or less fleshy. Stems hairless, becoming woody, with conspicuous basal leaf scars. Leaves basal and alternating up the stems, glaucous, hairless. Lower leaves to 40 cm long, stalked, broad and rounded, margins variously scalloped, occasionally lobed; upper leaves not lobed, stalkless, stem-clasping, bract -like. Flowers yellow, with 4 petals 10–25 mm long. Flowers in elongated clusters. Flowers Sep.–Nov. Seed cases spreading horizontally, then becoming erect, 5–10 cm long, including the beak, 2–5 mm wide, cylindrical, or weakly compressed. Beak 5–11 mm long, with 1 or 2 seeds. Stalk 10–30 mm long. Seeds dark brown to black.
Cultivated as a vegetable.
PlantNET description: http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Brassica~oleracea (accessed 6 January, 2021 )
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