Les arbres notables, Notable trees,
de la Municipalité de Pontiac, et de l’Outaouais,
This list includes several shrubs or very small trees. Measurements of Quebec champion or notable trees from the 1994 repertoire are given - circumference in cm at 1.4 m from ground, estimated height in m, and spread (cime) in m.
Abies balsamea, Balsam fir, Sapin baumier
circ. 144 cm, ht. 23.8 m, spread/cime 5.2 m.
Acer ginnala, Amur maple, Érable de l’Amur
circ. 148 cm, ht. 6.7 m, spread/cime 7.6 m.
Acer negundo, Manitoba maple, Érable à giguère
circ. 348 cm, ht. 22.0 m, spread/cime 19.2 m.
Female trees produce many seeds - important winter food for mice, squirrels and Evening grosbeaks, but a nuisance in gardens. Weak spreading branches often broken by wet snow, ice and wind. Banned in City of Gatineau. Will grow almost anywhere, and can look interesting. acer-juglans-m
Acer nigrum† , Black maple, Érable noir
Acer pensylvanicum, Striped maple, Érable de Pennsylvanie
circ. 67 cm, ht. 7.4 m, spread/cime 5.1 m.
Acer platanoides, Norway maple, Érable de Norvège
circ. 562 cm, ht. 14.0 m, spread/cime 18.0 m.
Acer rubrum, Red maple, Érable rouge
circ. 218 cm, ht. 17.6 m, spread/cime 10.4 m.
Acer saccharinum, Silver maple, Érable argenté
circ. 550 cm, ht. 26.0 m, spread/cime 26.1 m.
Acer saccharum, Sugar maple, Érable à sucre
circ. 585 cm, ht. 32.4 m, spread/cime 25.0 m.
Acer spicatum, Mountain maple, Érable à épis
Aesculus glabra, Ohio buckeye, Marronnier de l’Ohio
circ. 201 cm, ht. 8.5 m, spread/cime 6.3 m.
Aesculus hippocastanum, Horsechestnut, Marronnier d’Inde
circ. 194 cm, ht. 13.9 m, spread/cime 11.9 m.
Alnus incana ssp rugosa, Speckled alder, Aulne rugueux
Alnus viridis ssp crispa, Green alder, Aulne crispé
Amelanchier arborea, Downy serviceberry , Amélanchier arborescent
Amelanchier laevis, Smooth serviceberry , Amélanchier glabre
Bronwyn Chester’s article on Serviceberry trees
Betula alleghaniensis, Yellow birch, Bouleau jaune
circ. 491 cm, ht. 28.0 m, spread/cime 10.0 m.
Québec’s provincial tree.
L’emblème du Québec.
Betula cordifolia, Mountain Paper birch, Bouleau à feuilles cordées
Betula papyrifera, White birch, Bouleau à papier
circ. 307 cm, ht. 18.5 m, spread/cime 19.5 m.
Betula pendula, European white birch, silver birch, Bouleau blanc d’Europe
circ. 206 cm, ht. 21.6 m, spread/cime 14.2 m.
Caragana arborescens, Siberian pea-tree, Caraganier de Sibérie
Flowering in mid-May.
Carpinus caroliniana ssp. virginiana*, Blue beech, Charme de Caroline
circ. 132 cm, ht. 6.3 m, spread/cime 9.3 m.
Carya cordiformis, Bitternut hickory, Caryer cordiforme/ à noix amères
circ. 291 cm, ht. 28.0 m, spread/cime 18.0 m.
Carya ovata, Shagbark hickory, Caryer ovale/ à noix douces
circ. 320 cm, ht. 17.0 m, spread/cime 16.0 m.
Catalpa speciosa, Northern catalpa, Catalpa du Nord/ de l’Ouest
circ. 303 cm, ht. 16.0 m, spread/cime 13.8 m.
Celtis occidentalis, Hackberry, Micocoulier occidental
circ. 360 cm, ht. 19.0 m, spread/cime 13.5 m.
Cephalanthus occidentalis*, Buttonbush, Céphalante occidental
Cornus alternifolia, Alternate-leaved dogwood, Cornouiller à feuilles alternes
Cornus amomum (ssp. obliqua), Oblique dogwood, Silky dogwood, Cornouiller oblique
Cornus rugosa*, Round-leaved dogwood, Cornouiller rugueux
Cornus stolonifera/sericea, Red osier dogwood, Cornouiller stolonifère/ Hart rouge
Corylus americana, American hazel, Noisetier d’Amérique
Corylus cornuta ssp. c., Beaked hazel, Noisetier à lng bec
Crataegus chrysocarpa var. chr. , Fireberry hawthorn, Aubépine dorée
Crataegus crudelis , Cruel hawthorn, Aubépine cruelle
Crataegus flabellata , Fanleaf hawthorn, Aubépine flabelliforme
Crataegus macrantha , Scarlet haw, Aubépine à épines longues
Crataegus punctata, Dotted hawthorn, Aubépine à fruits ponctués
circ. 130 cm, ht. 6.5 m, spread/cime 11.7 m.
Crataegus spp., Hawthorn, Les aubépines
Crataegus submollis , Quebec hawthorn, Aubépine subsoyeus
Flowering in mid-May.
Euonymus alatus, Burning bush, Fusain ailé
Fagus grandifolia, American beech, Hêtre à grandes feuilles
circ. 415 cm, ht. 14.7 m, spread/cime 17.8 m.
Fraxinus americana, White ash, Frêne blanc/ d’Amérique
circ. 411 cm, ht. 35.3 m, spread/cime 17.5 m.
Fraxinus pennsylvanica v austini, Northern red ash, Frêne d’Austin
Fraxinus nigra, Black ash, Frêne noir
circ. 300 cm, ht. 23.0 m, spread/cime 19.4 m.
circ. 85 - 87 cm, 2 trunks/2 troncs, Bouchette, rang VIII (notable).
Ginkgo biloba, Ginkgo, Gingko
circ. 375 cm, ht. 17.0 m, spread/cime 13.0 m.
Gleditsia triacanthos inermis, Honey locust, Févier sans épine
circ. 248 cm, ht. 19.0 m, spread/cime 19.8 m.
Gymnocladus dioicus, Kentucky coffee tree, Chicot du Canada
circ. 293 cm, ht. 30.0 m, spread/cime 20.0 m.
Bronwen Chester’s article on les chicots
Hamamelis virginiana, Witch hazel, Hamamélis de Virginie
Ilex verticillata, Winterberry holly, Houx verticillé
Juglans cinerea*, Butternut, Noyer cendré
circ. 268 cm, ht. 16.3 m, spread/cime 17.5 m. (Champion in 1994, Charlesbourg, 1ère Avenue)
Many butternuts in Breckenridge. Largest one at 1620 route 148 is:
circ. 332 cm, ht. 21.2 m, spread/cime ? m. New Champion? acer-juglans-m
Juglans nigra, Black walnut, Noyer noir
circ. 310 cm, ht. 19.5 m, spread/cime 13.0 m. (Champion in 1994, Mercier)
There are quite a lot of black walnuts in Aylmer and Breckenridge. Largest one at 1620 route 148 is:
circ. 210 cm, ht. 24.1 m, spread/cime ? m. acer-juglans-m
Juniperus communis var. depressa, Common juniper, Genévrier commun
Juniperus virginiana var. crebra ®, Eastern redcedar, Genévrier de Virginie
Eardley Escarpment in Gatineau Park contains 80% of the Juniperus virginiana in Québec.
Juniperus sp., Juniper, Genévrier
circ. 179 cm, ht. 10.5 m, spread/cime 7.2 m.
Larix laricina, Tamarack, Mélèze laricin
circ. 275 cm, ht. 22.0 m, spread/cime 17.7 m.
Malus coronaria, Wild crab apple, Pommier odorant
Flowering in mid-May.
Malus pumila/sylvestris, Wild apple, Pommier sauvage
circ. 243 cm, ht. 12.5 m, spread/cime 7.0 m.
Flowering in mid-May.
Nemopanthus mucronatus, Mountain-holly, Némopanthe mucroné
Ostrya virginiana, Ironwood, Ostryer de Virginie
circ. 215 cm, ht. 14.0 m, spread/cime 8.3 m.
Picea abies (>100 cultivars), Norway spruce, Épinette de Norvège
circ. 362 cm, ht. 19.6 m, spread/cime 15.5 m.
Picea glauca, White spruce, Épinette blanche
circ. 304 cm, ht. 24.0 m, spread/cime 12.2 m.
Picea mariana, Black spruce, Épinette noire
circ. 151 cm, ht. 24.7 m, spread/cime 2.0 m.
Picea pungens, Colorado spruce, Épinette du Colorado
“Just outside Shawville stands a 56 foot (17.23 m) Christmas tree on the property of Trevor and Suzanne Howard. When lit with 550 lights the gigantic blue spruce can be seen from Hwy 148 ... the largest decorated tree in Québec.” Extra 26 Dec 2008.
Picea rubens, Red spruce, Épinette rouge
circ. 187 cm, ht. 24.2 m, spread/cime 9.5 m.
Pinus banksiana, Jack pine, Pin gris
Flowering in mid-May.
Pinus resinosa, Red pine, Pin rouge
circ. 246 cm, ht. 21.3 m, spread/cime 13.0 m.
Pinus strobus, Eastern white pine, Pin blanc
circ. 467 cm, ht. 33.0 m, spread/cime 8.0 m.
Pinus sylvestris, Scots pine, Pin sylvestre
Populus balsamifera ssp. b., Balsam poplar, Peuplier baumier
circ. 310 cm, ht. 27.5 m, spread/cime 17.3 m.
Populus deltoides, Eastern cottonwood, Peuplier à feuilles deltoïdes
circ. 704 cm, ht. 31.0 m, spread/cime 15.5 m.
Populus grandidentata, Largetooth aspen, Peuplier à grands dents
circ. 397 cm, ht. 23.0 m, spread/cime 17.7 m.
Populus nigra, Lombardy poplar, Peuplier de Lombardie
circ. 313 cm, ht. 30.7 m, spread/cime 4.8 m.
Populus tremuloides, Trembling aspen, Peuplier faux tremble
circ. 370 cm, ht. 26.0 m, spread/cime 8.0 m.
Prunus nigra, Canada plum, Prunier noir
White flowers in early May, before the leaves, and before other hedgerow trees. Very pretty.
Prunus pensylvanica, Pin cherry, Cerisier de Pennsylvanie
Prunus serotina, Black cherry, Cerisier d’automne
Prunus virginiana ssp. v., Choke cherry, Cerisier de Virginie
Flowering in mid-May.
Pyrus communis, Pear, Poirier commun
Quercus alba, White oak, Chêne blanc
circ. 314 cm, ht. 33.7 m, spread/cime 20.5 m.
Quercus macrocarpa, Bur oak, Chêne à gros fruits
circ. 520 cm, ht. 21.0 m, spread/cime 21.5 m
juniperus-ulmus-m. young-trees
Quercus palustris, Pin oak, Chêne des marais
circ. 157 cm, ht. 19.5 m, spread/cime 12.1 m.
Quercus rubra, Red oak, Chêne rouge
circ. 610 cm, ht. 23.0 m, spread/cime 22.0 m.
Rhamnus cathartica, European buckthorn, Nerprun cathartique
Rhamnus frangula , Glossy buckthorn, Nerprun bourdaine
Rhus typhina, Staghorn sumac, Sumac vinaigrier
Robinia pseudoacacia, Black locust, Robinier faux-acacia
circ. 287 cm, ht. 20.0 m, spread/cime 13.0 m.
Salix alba v. tristis, Golden weeping willow, Saule pleureur doré
circ. 550 cm, ht. 30.0 m, spread/cime 24.0 m.
Salix amygdaloides, Peachleaf willow, Saule à feuilles de pêcher
Salix bebbiana, Bebb willow, Saule de Bebb
Salix discolor, Pussy willow, Saule discolore
Salix exigua /interior, Sandbar willow, Saule de l’Interior
Salix fragilis, Crack willow, Saule fragile
circ. 485 cm, ht. 22.0 m, spread/cime 20.5 m.
Salix alba x S. fragilis , Hybrid white willow, Saule blanc
Salix lucida ssp. lucida, Shining willow, Saule brillant
Salix nigra, Black willow, Saule noir
Salix pentandra, Laurel willow, Saule laurier
circ. 310 cm, ht. 16.0 m, spread/cime 14.2 m.
Salix petiolaris, Meadow willow, Saule à long pétiole
Sambucus canadensis, Canadian elder, Sureau du Canada
Sambucus racemosa ssp. pubens, Red-berried elder, Sureau rouge
Sorbus americana, American mountain-ash, Sorbier d’Amérique
circ. 262 cm, ht. 12.4 m, spread/cime 12.9 m.
Sorbus aucuparia (Pyrus), European mountain-ash, rowan tree, Sorbier des oiseleurs
Sorbus decora, Showy mountain-ash, Sorbier decoratif
Syringa vulgaris, Common lilac, Lilas commun
Taxus canadensis, Canada Yew (Ground Hemlock), If du Canada
Thuja occidentalis, Eastern white cedar, Thuya occidental
circ. 476 cm, ht. 17.0 m, spread/cime 11.4 m.
Tilia americana, Basswood, Tilleul d’Amérique
circ. 310 cm, ht. 26.0 m, spread/cime 15.0 m.
One at 1583 route 148 is circ. 366 cm, ht. 11m, spread/cime ? m. juniperus-ulmus-m
Tsuga canadensis, Eastern hemlock, Pruche de l’Est
circ. 376 cm, ht. 23.8 m, spread/cime 15.0 m.
Ulmus americana, White elm, Orme d’Amérique
circ. 612 cm, ht. 24.0 m, spread/cime 14.0 m. juniperus-ulmus-m
Ulmus pumila, Siberian elm, Orme de Sibérie
Flowering in mid-May.
Ulmus rubra, Slippery elm, Orme rouge
Ulmus thomasii†, Rock elm, Orme liège
circ. 184 cm, ht. 22.8 m, spread/cime 10.0 m.
Rare in Quebec, but many in Breckenridge hedgerows. juniperus-ulmus-m
Zanthoxylum americanum, Common prickly-ash, Clavalier d’Amérique
A list in progress:
Highlighted botanic names are clickable to show you a photo.