Grevillea polybractea H.B.Will.

Species

Angiosperms > Proteales > Proteaceae > Grevillea

Characteristics

Spreading shrub 0.3-1.8 m high. Leaves entire, linear to narrowly oblong-elliptic, 3-7.5 cm long, 1-6 mm wide; margins loosely to tightly revolute; upper surface becoming glabrous and granular; lower surface sometimes obscured, subvillous. Conflorescence terminal, simple, decurved, very dense, subglobose and often subsecund, with 10-20 (-34) flowers, acropetal; floral rachis 3-10 mm long, villous. Flowers adaxially acroscopic. Flower colour: perianth yellow and orange or yellow and red (hairs reddish); style dull pink to reddish orange. Perianth villous outside, bearded inside, usually persistent to fruiting stage. Pistil 9.5-14 mm long; ovary sessile, villous; style villous at base, becoming glabrous towards apex and ventrally, weakly exserted in late bud; pollen-presenter lateral. Follicles obloid-ellipsoidal, 12-15 mm long, villous and subvelutinous, with 3 faint longitudinal dorsal ridges.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention evergreen
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.3 - 1.8
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Grows in well-drained sites in open eucalypt forest with sclerophyllous shrubby understorey, in stony soils often over granite.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-11

Usage

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

Cultivation

Mode -
Germination duration (days) 20 - 25
Germination temperacture (C°) 23 - 26
Germination luminosity light
Germination treatment soaking
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Grevillea polybractea world distribution map, present in Australia

Conservation status

Grevillea polybractea threat status: Endangered

Identifiers

LSID urn:lsid:ipni.org:names:703989-1
WFO ID wfo-0000709484
COL ID 3HCWD
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Grevillea polybractea