Plants of South Eastern New South Wales
Banksia robur
Common name
Swamp banksia
Family
Proteaceae
Where found
Woodland and heath in more or less permanently damp sites. Coast and ranges north from west of Albion Park.
Notes
Shrub usually to 2 m high. Bark smooth. Branchlets rusty-hairy. Leaves alternating up the stems, usually 12–30 cm long, 50–90 mm wide, lower surface white-hairy, main veins with brownish hairs, margins toothed or sometimes almost entire, tips squared off to notched, and with a small abrupt point. Flower heads 100–170 mm long, of many flowers. Individual flowers with greenish cream bases and metallic green tips, turning dull and then brown after the flowers open, with 4 'petals', each 20–25 mm long, splitting to the base when the flowers are fully open. Style mostly straight, cream to pale green, remaining on mature cones. Cones 100–170 mm long. Seeds with one wing.
Natural hybrids with Banksia oblongifolia have been recorded.
PlantNET description: http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Banksia~robur (accessed 30 April 2021)
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