Grevillea R.Br. ex Knight

Grevillea (en), Grévillée (fr)

Genus

Angiosperms > Proteales > Proteaceae

Characteristics

Trees or shrubs. Leaves spiral, simple or pinnate, various in shape, sometimes in one specimen. Racemes mostly in a terminal or axillary panicle, or solitary; indumentum consisting of appressed hairs attached in the centre, rarely with spreading hairs forked at the base or clustered. Bracts minute, mostly early caducous, sometimes apparently absent. Flowers solitary or in pairs, on free pedicels along the rhachis. Perianth tube mostly recurved under the limb or straight, limb ± globular, usually oblique, segments coherent at the limb long after the tube has slit open. Anthers ovate, sessile in the base of the limb, I.c. in the concave upper part of the segments; connective not or scarcely produced beyond the anthers. Disk annular of semi-annular, mostly entire, sometimes ± bilobed. Ovary stipitate or rarely sessile, with 2 anatropous ovules laterally attached about the middle of the cell; style filiform, usually long and protruding from the slit on the lower side of the perianth tube before the apex is free from the limb, accrescent during and after anthesis, ultimately straightened and erect, ± dilated at the top into a straight, oblique or lateral disk-like apex bearing the small stigma in its centre. Fruit a follicle, usually oblique, coriaceous to nearly woody and opening along the adaxial (ventral) margin, rarely opening in 2 almost free valves. Seeds 1 or 2, flat, orbicular or oblong, mostly bordered all round by a membranous wing.
More
Prostrate shrublets to tall trees. Lvs alternate, often simple and entire, otherwise toothed, lobed, 1-2-pinnatifid or pinnate, sometimes spine-tipped. Fls in axillary or terminal, elongated or reduced and umbel-like racemes, ☿, pedicellate; bracts usually caducous. Perianth usually somewhat irregular; tube usually revolute and curved under limb, sometimes straight; limb usually globular with segments soon becoming revolute. Anthers sessile in the concave perianth segments. Nectary usually semi-circular, sometimes 2-lobed or ± annular or 0. Ovary usually stipitate, rarely sessile, glabrous; ovules 2. Style persistent, usually ± = perianth, curved and protruding from slit on lower side of perianth tube before apex is free from limb, straightening out at anthesis; apex ± dilated, forming an oblique disc or an erect or lateral cone; stigma small. Fr. a coriaceous or rarely woody follicle, with inner faces of valves concave. Seeds 1-2, with narrow and ± annular wing or wingless.
Shrubs or (in Flora area) trees. Leaves simple or (more commonly in Flora area) pinnately to bipinnately divided. Flowers in short or long simple or branched racemes; bracts caducous. Perianth tubular, expanded distally into a limb enclosing the stamens, the tube splitting on one side to release the style. Fruit a dehiscent follicle; seeds 2.
Perianth tubular, expanded distally into a limb enclosing the stamens, the tube splitting on one side to release the style.
Leaves simple or (more commonly in the Flora area) pinnately to bi-pinnately divided.
Flowers in short or long simple or branched racemes; bracts caducous.
Shrubs or (in the Flora Zambesiaca area) trees.
Fruit a dehiscent follicle; seeds 2.
Life form -
Growth form shrub
Growth support -
Foliage retention evergreen
Sexuality -
Pollination -
Spread -
Mature width (meter) 2.5 - 4.0
Mature height (meter) 2.5 - 4.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

In Australia mainly xerophytic shrubs or small trees; a few are large trees found in the rainforests of subtropical and tropical E. Australia. The Malaysian representatives occur both in rainforests and in dry savannah-forests, from the lowland up to 1600 m.
Light 7-9
Soil humidity -
Soil texture -
Soil acidity 2-6
Soil nutriment -
Hardiness (USDA) 9-11

Usage

Uses. The timber of some species which reach large dimensions in the NE. Australian rain-forests is known as 'silky oak'. See further under G. robusta.
Uses timber
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings or seedlings. Seeds needs soaking.
Mode cuttings seedlings
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 -

Images

Grevillea unspecified picture

Distribution

Grevillea world distribution map, present in Australia, Malaysia, New Zealand, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:331633-2
WFO ID wfo-4000016207
COL ID 636FL
BDTFX ID 86501
INPN ID 192944
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Grevillea Anadenia Lysanthe Manglesia

Lower taxons

Grevillea hislopii Grevillea althoferorum Grevillea anethifolia Grevillea aneura Grevillea angulata Grevillea annulifera Grevillea arenaria Grevillea aspleniifolia Grevillea asteriscosa Grevillea baueri Grevillea baxteri Grevillea beadleana Grevillea beardiana Grevillea bedggoodiana Grevillea bemboka Grevillea berryana Grevillea biformis Grevillea bipinnatifida Grevillea brevifolia Grevillea bronweniae Grevillea buxifolia Grevillea byrnesii Grevillea cagiana Grevillea calcicola Grevillea caleyi Grevillea calliantha Grevillea callichlaena Grevillea candelabroides Grevillea candicans Grevillea candolleana Grevillea capitellata Grevillea celata Grevillea ceratocarpa Grevillea cheilocarpa Grevillea christiniae Grevillea cirsiifolia Grevillea commutata Grevillea confertifolia Grevillea coriacea Grevillea didymobotrya Grevillea dimorpha Grevillea divaricata Grevillea diversifolia Grevillea dolichopoda Grevillea donaldiana Grevillea drummondii Grevillea elbertii Grevillea elongata Grevillea endlicheriana Grevillea epicroca Grevillea erectiloba Grevillea eremophila Grevillea erinacea Grevillea eriobotrya Grevillea eriostachya Grevillea eryngioides Grevillea erythroclada Grevillea fasciculata Grevillea fastigiata Grevillea fililoba Grevillea fistulosa Grevillea flexuosa Grevillea floribunda Grevillea floripendula Grevillea formosa Grevillea glauca Grevillea globosa Grevillea goodii Grevillea gordoniana Grevillea guthrieana Grevillea hakeoides Grevillea haplantha Grevillea hirtella Grevillea hodgei Grevillea hookeriana Grevillea humifusa Grevillea humilis Grevillea iaspicula Grevillea ilicifolia Grevillea imberbis Grevillea inconspicua Grevillea incrassata Grevillea incurva Grevillea infecunda Grevillea infundibularis Grevillea insignis Grevillea integrifolia Grevillea intricata Grevillea kedumbensis Grevillea kenneallyi Grevillea kennedyana Grevillea kirkalocka Grevillea latifolia Grevillea laurifolia Grevillea lavandulacea Grevillea leiophylla Grevillea leptobotrys Grevillea leptopoda Grevillea leucoclada Grevillea leucopteris Grevillea levis Grevillea linearifolia Grevillea maccutcheonii Grevillea macleayana Grevillea makinsonii Grevillea metamorpha Grevillea molyneuxii Grevillea monslacana Grevillea montana Grevillea monticola Grevillea nana Grevillea nematophylla Grevillea neurophylla Grevillea nudiflora Grevillea oleoides Grevillea paniculata Grevillea parviflora Grevillea patentiloba Grevillea pectinata Grevillea petrophiloides Grevillea plurijuga Grevillea polybractea Grevillea ramosissima Grevillea saccata Grevillea sericea Grevillea shuttleworthiana Grevillea speciosa Grevillea sphacelata Grevillea synapheae Grevillea tenuiflora Grevillea thelemanniana Grevillea trifida Grevillea tripartita Grevillea triternata Grevillea victoriae Grevillea virgata Grevillea whiteana Grevillea wilkinsonii Grevillea willisii Grevillea wilsonii Grevillea wiradjuri Grevillea nivea Grevillea acropogon Grevillea adenotricha Grevillea agrifolia Grevillea albiflora Grevillea alpina Grevillea alpivaga Grevillea angustiloba Grevillea argyrophylla Grevillea armigera Grevillea asparagoides Grevillea aspera Grevillea aurea Grevillea baileyana Grevillea banyabba Grevillea barklyana Grevillea batrachioides Grevillea biternata Grevillea brachystachya Grevillea brachystylis Grevillea bracteosa Grevillea corrugata Grevillea costata Grevillea crassifolia Grevillea cravenii Grevillea cunninghamii Grevillea curviloba Grevillea cyranostigma Grevillea decipiens Grevillea decora Grevillea decurrens Grevillea depauperata Grevillea dilatata Grevillea dimidiata Grevillea dryandri Grevillea dryandroides Grevillea dryophylla Grevillea dunlopii Grevillea evanescens Grevillea evansiana Grevillea excelsior Grevillea exposita Grevillea extorris Grevillea fulgens Grevillea fuscolutea Grevillea gariwerdensis Grevillea georgeana Grevillea glabrescens Grevillea heliosperma Grevillea helmsiae Grevillea hilliana Grevillea involucrata Grevillea irrasa Grevillea jephcottii Grevillea johnsonii Grevillea juncifolia Grevillea juniperina Grevillea linsmithii Grevillea longifolia Grevillea longistyla Grevillea maherae Grevillea manglesii Grevillea manglesioides Grevillea masonii Grevillea maxwellii Grevillea micrantha Grevillea microstegia Grevillea microstyla Grevillea mimosoides Grevillea miniata Grevillea minutiflora Grevillea miqueliana Grevillea mollis Grevillea montis-cole Grevillea mucronulata Grevillea muelleri Grevillea murex Grevillea muricata Grevillea myosodes Grevillea obliquistigma Grevillea occidentalis Grevillea oldei Grevillea oligantha Grevillea oligomera Grevillea olivacea Grevillea oncogyne Grevillea oxyantha Grevillea papillosa Grevillea papuana Grevillea paradoxa Grevillea parallela Grevillea parallelinervis Grevillea patulifolia Grevillea pauciflora Grevillea phanerophlebia Grevillea phylicoides Grevillea pilosa Grevillea pilulifera Grevillea pimeleoides Grevillea pinaster Grevillea pityophylla Grevillea pluricaulis Grevillea polybotrya Grevillea polychroma Grevillea prasina Grevillea prominens Grevillea prostrata Grevillea psilantha Grevillea pterosperma Grevillea pulchella Grevillea punctata Grevillea punicea Grevillea pyramidalis Grevillea pythara Grevillea quadricauda Grevillea quercifolia Grevillea quinquenervis Grevillea refracta Grevillea renwickiana Grevillea repens Grevillea reptans Grevillea rhizomatosa Grevillea rhyolitica Grevillea ripicola Grevillea rivularis Grevillea rogersoniana Grevillea roycei Grevillea rubicunda Grevillea rudis Grevillea sarissa Grevillea scabra Grevillea scabrida Grevillea scapigera Grevillea scortechinii Grevillea secunda Grevillea sessilis Grevillea shiressii Grevillea singuliflora Grevillea sparsiflora Grevillea spinosa Grevillea spinosissima Grevillea squiresiae Grevillea steiglitziana Grevillea stenobotrya Grevillea stenomera Grevillea stenostachya Grevillea striata Grevillea subterlineata Grevillea subtiliflora Grevillea sulcata Grevillea teretifolia Grevillea tetragonoloba Grevillea tetrapleura Grevillea thyrsoides Grevillea trachytheca Grevillea treueriana Grevillea umbellulata Grevillea uncinulata Grevillea uniformis Grevillea variifolia Grevillea velutinella Grevillea venusta Grevillea versicolor Grevillea wittweri Grevillea xiphoidea Grevillea zygoloba Grevillea neodissecta Grevillea neorigida Grevillea saxicola Grevillea burrowa Grevillea triloba Grevillea acanthifolia Grevillea acacioides Grevillea amplexans Grevillea benthamiana Grevillea concinna Grevillea crowleyae Grevillea dissecta Grevillea hugelii Grevillea lullfitzii Grevillea obtusiflora Grevillea pinifolia Grevillea preissei Grevillea rigida Grevillea tenuiloba Grevillea williamsoni Grevillea acuaria Grevillea australis Grevillea brevis Grevillea centristigma Grevillea chrysophaea Grevillea coccinea Grevillea deflexa Grevillea granulifera Grevillea pungens Grevillea crithmifolia Grevillea delta Grevillea diffusa Grevillea halmaturina Grevillea aquifolium Grevillea florida Grevillea obtusifolia Grevillea pachylostyla Grevillea parvula Grevillea stenogyne Grevillea vestita Grevillea glossadenia Grevillea granulosa Grevillea hockingsii Grevillea newbeyi Grevillea obtecta Grevillea phillipsiana Grevillea rara Grevillea raybrownii Grevillea rosieri Grevillea viridiflava Grevillea wickhamii Grevillea yorkrakinensis Grevillea acerata Grevillea acrobotrya Grevillea dielsiana Grevillea diminuta Grevillea disjuncta Grevillea lissopleura Grevillea longicuspis Grevillea marriottii Grevillea polyacida Grevillea lanigera Grevillea exul Grevillea meisneri Grevillea pteridifolia Grevillea gillivrayi Grevillea rosmarinifolia Grevillea banksii Grevillea robusta