Banksia attenuata R.Br.

Species

Angiosperms > Proteales > Proteaceae > Banksia

Characteristics

Shrub to 2 m or tree to 10 m tall, with lignotuber or fire-tolerant trunk. Bark thick, verrucose, friable, pale grey-orange. Stems pubescent. Leaves narrowed to petiole up to 1 cm long; lamina linear, 4-27 cm long, 5-16 mm wide, truncate; margins slightly recurved, obtusely and shortly serrate; upper surface hirsute, glabrescent; lower surface tomentose. Inflorescence terminal, 5-26 cm long; involucral bracts hirsute, viscid, persistent. Flowers bright yellow including styles. Perianth 15-22 mm long including limb of 3-4.5 mm, glabrous. Pistil gently curved, 15-22 mm long, glabrous; pollen presenter narrow, 1 mm long, smooth. Old flowers persistent, with styles curled against axis. Follicles broadly elliptic, 20-35 mm long, 10-15 mm high, 14-20 mm wide, smooth, densely hirsute, often darkly mottled. Seed obovate, 22-26 mm long; seed body cuneate, 12-14 mm long, 13-14 mm wide, smooth inside, rugose outside.
Life form -
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 5.2 - 10.0
Root system -
Rooting depth (meter) 3.7
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Grows in deep sand, sometimes over limestone or laterite, in kwongan, shrubland and woodland.
Light 7-9
Soil humidity 1-3
Soil texture 1-2
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-9

Usage

Uses environmental use medicinal
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°) -7
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Flower

Banksia attenuata flower picture by Bren (cc-by-sa)

Distribution

Banksia attenuata world distribution map, present in Australia

Conservation status

Banksia attenuata threat status: Vulnerable

Identifiers

LSID urn:lsid:ipni.org:names:703067-1
WFO ID wfo-0000559570
COL ID 68CD8
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Banksia attenuata Banksia cylindrostachya Sirmuellera attenuata