Banksia oblongifolia Cav.

Species

Angiosperms > Proteales > Proteaceae > Banksia

Characteristics

Shrub to 3 m tall, with lignotuber. Bark smooth, grey-brown. Stems tomentose, rusty becoming grey. Leaves alternate; petiole 2-5 mm long; lamina oblong to obovate, commonly 5-11 cm long, 1.5-2 cm wide, obtuse or truncate; margins slightly recurved, commonly serrate with teeth 1-2 mm long; upper surface densely rusty-tomentose, glabrescent; lower surface tomentose, with nerves glabrescent and pits woolly. Inflorescence terminal to a 1-5-year-old branchlet, 5-15 cm long; involucral bracts densely tomentose, persistent. Flowers pale yellow, often with blue-grey tinge; style cream. Perianth 21-26 mm long including limb of 4 mm, pubescent-hirsute outside, glabrous inside. Pistil straight, 20-28 mm long, glabrous; pollen presenter narrowly ovoid, 0.7-0.8 mm long. Old flowers soon falling. Follicles up to 80, narrowly elliptic, 10-18 mm long, 2-7 mm high, 3-7 mm wide; valves semi-circular, smooth, velvety, glabrescent. Seed obovate, 12-18 mm long; seed body oblong to semi-elliptic, 7-11 mm long, 3-7 mm wide, smooth or slightly rugose.
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A small shrub. It grows 0.6-3 m high. It spreads 1.5-3 m wide. The leaves are stiff and dark. They are oblong and with small teeth along the edge. The new growth is rust coloured and woolly. The flowers are pale yellow. The buds are blue-grey.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention evergreen
Sexuality -
Pollination -
Spread -
Mature width (meter) 1.5 - 3.0
Mature height (meter) 1.8 - 3.0
Root system -
Rooting depth (meter) -
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Flower color
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Nitrogen fixer -
Photosynthetic pathway c3

Environment

It will grow from tropical to temperate regions. It needs moist well drained soil. It can only stand light frosts. It suits hardiness zones 9-11. Coffs Harbour Botanical Gardens.
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On flats and swamp margins in sandy clay or clay-loam, in open forest, woodland and tall shrubland (Wallum); also on sandstone or granite ridges in open forest.
Light -
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Hardiness (USDA) 9-12

Usage

The nectar is sucked from the flower or used to make a sweet water drink.
Uses -
Edible nectars
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Plants can be grown by seed or cuttings.
Mode -
Germination duration (days) 30 - 90
Germination temperacture (C°) 18 - 21
Germination luminosity -
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Optimum temperature (C°) -
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Images

Habit

Banksia oblongifolia habit picture by Boris Therock (cc-by-sa)

Flower

Banksia oblongifolia flower picture by Boris Therock (cc-by-sa)
Banksia oblongifolia flower picture by Boris Therock (cc-by-sa)
Banksia oblongifolia flower picture by Boris Therock (cc-by-sa)

Distribution

Banksia oblongifolia world distribution map, present in Australia

Conservation status

Banksia oblongifolia threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:703149-1
WFO ID wfo-0000559738
COL ID KL6X
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Banksia oblongifolia Banksia salicifolia Banksia huegelii Banksia intermedia Banksia longifolia Banksia integrifolia var. oblongifolia Banksia latifolia var. minor Banksia oblongifolia var. minor Banksia robur var. minor