Banksia speciosa R.Br.

Species

Angiosperms > Proteales > Proteaceae > Banksia

Characteristics

Shrub to 8 m tall, without lignotuber. Bark smooth, grey. Stems velvety. Leaves: petiole 5-10 mm long; lamina broadly linear, truncate, divided into 15-30 triangular lobes each side, 20-45 cm long, 2-4 cm wide; margins recurved; upper surface tomentose, glabrescent; lower surface white-tomentose. Inflorescence terminal, conspicuous, 4-12 cm long; involucral bracts velvety, falling early. Flowers cream to pale yellow; styles cream. Perianth 40-45 mm long including limb of 5-6 mm, hirsute outside, glabrous inside. Pistil curved, 40-50 mm long, hirsute; pollen presenter oblong, 4-5 mm long, kinked at middle, deep red. Old flowers persistent. Follicles up to 20, prominent, elliptic, 35-50 mm long, 20-30 mm high, 20-30 mm wide, with a thick suture, densely velvety. Seed obovate, 37-45 mm long; seed body obovate-cuneate, 10-14 mm long, 9-12 mm wide, smooth outside, muricate inside.
Life form -
Growth form shrub
Growth support free-standing
Foliage retention evergreen
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 4.5 - 7.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Grows in deep white sand on consolidated dunes, in tall shrubland; often dominant.
Light 7-9
Soil humidity 1-3
Soil texture 1-2
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-8

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 30 - 90
Germination temperacture (C°) 18 - 21
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -12
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Flower

Banksia speciosa flower picture by Julia Wolpertinger (cc-by-sa)

Distribution

Banksia speciosa world distribution map, present in Australia

Conservation status

Banksia speciosa threat status: Vulnerable

Identifiers

LSID urn:lsid:ipni.org:names:703186-1
WFO ID wfo-0000559818
COL ID KL9Q
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Banksia grandidentata Banksia speciosa Sirmuellera speciosa