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List of inventoried conifers in Canada

From Wikipedia, the free encyclopedia

trunk of a large tree in the forest
The Red Creek Fir

Canada's national forest inventory includes many native conifer species.[1][a] All except the larches are evergreens.[3] Most are in the pine family, except for yews (in the yew family) and junipers, Alaska cedars and thuja cedars (in the cypress family).[4][5][6][b]

Softwood from North American conifers has a variety of commercial uses. The sturdier timber is milled for plywood, wood veneer and construction framing, including structural support beams and studs. Logs can be fashioned into posts, poles and railroad ties. Less sturdy timber is often ground and processed into pulpwood, principally for papermaking. Resins from sap yield wood tar, turpentine or other terpenes. Some resins and other tree products contain dangerous toxins (not generally listed below).[7]

Key

[edit]
Provinces and territories (see the Distribution column): AB Alberta, BC British Columbia, MB Manitoba, NB New Brunswick, NL Newfoundland and Labrador, NS Nova Scotia, NT Northwest Territories, NU Nunavut, ON Ontario, PE Prince Edward Island, QC Quebec, SK Saskatchewan, YT Yukon

Conifers

[edit]
Conifers
Species and a common name[1][2][8] Notes and commercial uses Distri­bution in Canada[8]

provincial tree of:[9]


avg height;
growth rate

Limits for soil pH, annual precipitation and low temperature Tolerance to
drought (D),
fire (F),
liming (L) and
shade (S)
Landscapes, bark and cones with foliage
Abies amabilis (Pacific silver fir)[10] Can reach 70 m (230 ft) in height. The timber is lightweight, with low resin content. The species can easily be distinguished from non-fir conifers by the grey, blistery trunk and rigid branches.

Uses: timber; landscaping, pulpwood, veneers, winter holiday decorations.[10][11]

BC

none


50 m (165 ft); slow[10]

pH 3.3–6.0

97–660 cm (38–260 in)
−33 °C (−28 °F)[10]

D: low
F: none
L: low
S: tolerant[10]
landscape
foliage and landscape
bark
cone and foliage
Abies balsamea (balsam fir) A significant source of food and shelter for wildlife. Horizontal blisters in the bark contain aromatic Canada balsam. The lightweight timber is economically important in Canada.

Uses: timber; landscaping, pulpwood, terpenes, veneers, winter holiday decorations.[12][13]

All provinces except BC

NB


18 m (60 ft); slow[12]

pH 4.0–6.0

33–152 cm (13–60 in)
−42 °C (−43 °F)[12]

D: low
F: low
L: low
S: tolerant[12]
habit
landscape
bark
cones and foliage
Abies grandis (grand fir) Can reach 70 m (230 ft) in height. The foliage has a distinct orange-like scent. The wood is soft, and not as durable as in other fir species.

Uses: timber; landscaping, pulpwood, veneers, winter holiday decorations.[14][15]

BC

none


46 m (150 ft); moderate[14]

pH 4.5–7.5

28–254 cm (11–100 in)
−36 °C (−33 °F)[14]

D: medium
F: high
L: low
S: tolerant[14]
landscape
landscape
bark
young cones
Abies lasiocarpa (subalpine fir) Provides habitat for wildlife and nutrition for livestock. Canada's inventory includes Abies bifolia, now considered a synonym of the variety A. lasiocarpa var. lasiocarpa.

Uses: timber; landscaping, pulpwood, winter holiday decorations.[16][17][18][19]

AB BC NT YT

YT


27 m (90 ft); slow[18]

pH 4.0–6.5

51–381 cm (20–150 in)
−46 °C (−51 °F)[18]

D: low
F: low
L: low
S: tolerant[18]
landscape
landscape
bark
cones and foliage
Callitropsis nootkatensis (Alaska cedar)[20][21] Formerly a significant timber tree providing durable, multi-use wood. Most of the trees have already been cleared, aside from limited numbers in protected areas. It is listed as Chamaecyparis nootkatensis in Canada's inventory.

Uses: timber; landscaping.[1][20][21][22]

BC

none


23 m (75 ft); slow[20]

pH 5.5–7.0

110–250 cm (45–100 in)
−30 °C (−22 °F)[20]

D: low
F: low
L: none
S: tolerant[20]
three treetops
habit and foliage
bark
cone and foliage
Juniperus scopulorum (Rocky Mountain juniper) Usually a shrub or small tree. The wood is durable, especially when seasoned, and suitable for furniture. The resins are aromatic.

Uses: landscaping, posts, veneers.[23][24]

AB BC SK

none


15 m (50 ft); slow[23]

pH 5.0–8.5

23–66 cm (9–26 in)
−39 °C (−38 °F)[23]

D: high
F: low
L: high
S: intolerant[23]
landscape
landscape
bark
foliage and cones
Juniperus virginiana (eastern red cedar) An important support species for wildlife throughout its range. Although the tree has limited commercial use, the wood is highly valued for its appearance and robustness. The resins are aromatic.

Uses: landscaping, posts, veneers, winter holiday decorations.[25][26]

ON QC

none


15 m (50 ft); slow[25]

pH 4.7–8.0

38–173 cm (15–68 in)
−42 °C (−43 °F)[25]

D: high
F: low
L: high
S: medium[25]
landscape
landscape
bark
foliage and cones
Larix laricina (tamarack) Adapted to a variety of poor soil conditions, including peatland. The tree has one of the widest distributions among North American conifers.

Uses: timber; landscaping, posts, pulpwood.[27][28]

All provinces and territories

NT


24 m (80 ft); rapid[27]

pH 5.5–6.5

18–140 cm (7–55 in)
−62 °C (−79 °F)[27]

D: low
F: none
L: low
S: intolerant[27]
landscape
landscape
bark
cone and foliage
Larix lyallii (subalpine larch) Distinguishable from western larch by its woolly buds and new growth. In its range, the subalpine larch is often found growing higher on cold mountain slopes than other trees.

Uses: landscaping.[29][30]

AB BC

none


12 m (40 ft); slow[29]

pH 3.9–5.6

66–241 cm (26–95 in)
−50 °C (−58 °F)[29]

D: high
F: low
L: none
S: intolerant[29]
landscape
bark
cone and foliage
Larix occidentalis (western larch) The largest larch, and the most important one commercially for its timber. Also a significant source of arabinogalactan, a gum used as a thickening agent.

Uses: timber; landscaping, posts, pulpwood, veneers.[31][32]

AB BC

none


61 m (200 ft); rapid[31]

pH 6.0–7.0

33–127 cm (13–50 in)
−42 °C (−43 °F)[31]

D: low
F: low
L: low
S: intolerant[31]
landscape
landscape
bark
cone
Picea engelmannii (Engelmann spruce) Typically contains many small wood knots that lower the grade of the timber. The light colour, long fibres and very low resin content contribute to the quality of its pulpwood.

Uses: timber; landscaping, posts, pulpwood, terpenes, veneers.[33][34]

AB BC

none


37 m (120 ft); slow[33]

pH 6.0–8.0

53–406 cm (21–160 in)
−46 °C (−50 °F)[33]

D: low
F: low
L: high
S: tolerant[33]
landscape
landscape
landscape
foliage and cone
Picea glauca[c] (white spruce) One of the main sources of Canadian pulpwood and construction timber. It is also used to build furniture, pallets and musical instruments.

Uses: timber; pulpwood.[35][36][37]

All provinces and territories

MB


30 m (100 ft); slow[35]

pH 4.0–8.2

18–127 cm (7–50 in)
−54 °C (−65 °F)[35]

D: high
F: low
L: low
S: medium[35]
landscape
landscape
bark
cone and foliage
Picea mariana (black spruce)

Mainly harvested for pulpwood; construction uses are limited by the small size (for a spruce). The pale yellow wood is lightweight but strong. Birds commonly seen in groves in summer months include ruby-crowned kinglets, ovenbirds and Setophaga warblers.

Uses: timber; landscaping, pulpwood, terpenes, winter holiday decorations.[38][39]

All provinces and territories

NL


20 m (65 ft); slow[38]

pH 4.7–6.5

13–152 cm (5–60 in)
−62 °C (−79 °F)[38]

D: low
F: none
L: low
S: tolerant[38]
landscape
landscape
bark
cones and foliage
Picea rubens (red spruce) The straight-grained wood is lightweight but strong. It is the most popular choice in many stringed instruments for its resonance.

Uses: timber; posts, pulpwood, terpenes, veneers.[40][41]

All eastern provinces

NS


34 m (110 ft); moderate[40]

pH 4.0–5.8

71–132 cm (28–52 in)
−44 °C (−47 °F)[40]

D: medium
F: none
L: low
S: tolerant[40]
landscape
landscape
bark
cones and foliage
Picea sitchensis (Sitka spruce) The largest spruce, and one of the most prominent along the western Canadian coastline. The strong wood is used in light aircraft, masts and turbine blades. It is also used in many musical instruments for its resonance.

Uses: timber; pulpwood, terpenes.[42][43]

BC

none


61 m (200 ft); moderate[42]

pH 3.9–5.7

56–572 cm (22–225 in)
−36 °C (−33 °F)[42]

D: low
F: none
L: medium
S: tolerant[42]
landscape
landscape
trunk
cone and foliage
Pinus albicaulis (whitebark pine) A slow-growing and long-lived pioneer species that helps reduce the movement of soil and snow. The seeds are a source of nutrition for birds, small mammals, black bears and grizzly bears.

Uses: no significant economic uses.[44][45]

AB BC

none


20 m (65 ft); slow[44]

pH 4.8–8.0

46–183 cm (18–72 in)
−50 °C (−58 °F)[44]

D: high
F: none
L: low
S: medium[44]
landscape
landscape
bark
cone and foliage
Pinus banksiana (jack pine) Sometimes milled for utility poles and railroad ties. It has the broadest distribution of any pine species in the country.

Uses: timber; landscaping, posts, pulpwood, terpenes.[46][47]

All except YT, NU

none


24 m (80 ft); rapid[46]

pH 6.0–8.2

38–89 cm (15–35 in)
−47 °C (−53 °F)[46]

D: low
F: none
L: low
S: intolerant[46]
landscape
landscape
bark
cones and foliage
Pinus contorta (lodgepole pine) Used in paneling, and sometimes milled for utility poles and railroad ties. The trees usually grow rapidly when young and can be harvested economically. Canada's inventory includes the varieties P. contorta var. contorta and P. contorta var. latifolia.

Uses: timber; posts, pulpwood, terpenes, veneers.[16][48][49]

AB BC NT SK YT

AB


30 m (99 ft); rapid[48]

pH 6.2–7.5

46–64 cm (18–25 in)
−57 °C (−70 °F)[48]

D: low
F: low
L: high
S: intolerant[48]
landscape
landscape
bark (for var. latifolia)
cone and foliage
Pinus flexilis (limber pine) A slow-growing species not usually planted for its timber, but sometimes harvested along with other species. It is adapted to harsh climates, including windy and dry conditions, and provides the only tree cover available on some sites. The species is long-lived; one specimen was found to be 1650 years old.

Uses: timber; landscaping, edible seeds[50][51]

AB BC

none


20 m (66 ft); slow[50]

pH 5.7–6.5

51–178 cm (20–70 in)
−42 °C (−43 °F)[50]

D: high
F: low
L: medium
S: intolerant[50]
landscape
foliage
bark
cone and foliage
Pinus monticola (Western white pine) Straight-grained, lightweight and low in resin, the timber is often used in framing and woodworking.

Uses: timber; landscaping, pulpwood, terpenes, veneers.[52][53]

AB BC

none


61 m (200 ft); rapid[52]

pH 5.5–7.0

38–76 cm (15–30 in)
−36 °C (−33 °F)[52]

D: low
F: low
L: medium
S: medium[52]
landscape
landscape
bark
cones and foliage
Pinus ponderosa (ponderosa pine) Can reach more than 230 ft (70 m) in height. It is a widely distributed tree in western North America, and one of the main sources of timber, with a relatively fast growth rate.

Uses: timber; landscaping, posts, pulpwood, terpenes, veneers.[54][55]

BC

none


68 m (223 ft); moderate[54]

pH 5.0–9.0

38–64 cm (15–25 in)
−38 °C (−36 °F)[54]

D: high
F: high
L: low
S: intolerant[54]
landscape
landscape
bark
foliage and cones
Pinus resinosa (red pine) One of the fastest-growing and most frequently planted conifer species in Canada. The wood is straight-grained and moderately hard. Some of it is milled for railroad ties and cabin logs.

Uses: timber; landscaping, posts, pulpwood, veneers, winter holiday decorations.[56][57]

All eastern provinces + MB

none


24 m (80 ft); rapid[56]

pH 4.5–6.0

38–152 cm (15–60 in)
−42 °C (−43 °F)[56]

D: low
F: low
L: none
S: intolerant[56]
landscape
landscape
bark
foliage and cone
Pinus rigida (pitch pine) Rigida (rigid) refers to the needles and cone scales. The wood, resinous and rot-resistant, is suitable for shipbuilding, mine timbers, fencing and railroad ties.

Uses: landscaping, posts, pulpwood, terpenes, winter holiday decorations.[58][59]

NS ON QC

none


24 m (80 ft); rapid[58]

pH 3.5–5.1

94–142 cm (37–56 in)
−42 °C (−43 °F)[58]

D: medium
F: low
L: low
S: intolerant[58]
landscape
landscape
bark
cone and foliage
Pinus strobus (eastern white pine) One of the most commercially important trees in eastern North America, in part due to its rapid growth. The timber is durable but soft enough for woodworking.

Uses: timber; landscaping, posts, pulpwood, veneers, winter holiday decorations.[60][61]

All eastern provinces + MB

ON


46 m (150 ft); rapid[60]

pH 4.0–6.5

51–203 cm (20–80 in)
−36 °C (−33 °F)[60]

D: none
F: none
L: none
S: medium[60]
snowy landscape
tree
bark
cone and foliage
Pseudotsuga menziesii (Douglas fir) Worldwide, one of the most commercially successful timber trees. Canada's inventory includes the varieties P. menziesii var. glauca and P. menziesii var. menziesii.

Uses: timber; landscaping, posts, pulpwood, terpenes, veneers, winter holiday decorations.[16][62][63]

AB BC

none


61 m (200 ft); moderate[62]

pH 5.0–7.5

46–254 cm (18–100 in)
−36 °C (−33 °F)[62]

D: low
F: low
L: low
S: medium[62]
landscape
bark and foliage
bark
cones and foliage
Taxus brevifolia (western yew) A shade-tolerant tree of the Yew family. When competing with taller and faster-growing trees, it becomes part of the undergrowth. The seed cones have red arils.

Uses: landscaping, posts.[64][65]

AB BC

none


12 m (40 ft); slow[64]

pH 6.2–7.5

61–152 cm (24–60 in)
−28 °C (−18 °F)[64]

D: medium
F: low
L: low
S: tolerant[64]
landscape
landscape
bark
foliage and cones
Thuja occidentalis (eastern white-cedar) The termite- and rot-resistant wood, durable in a range of outdoor conditions, is used in fencing, cabin logs and roof shingles.

Uses: timber; landscaping, posts, pulpwood, veneers.[4][5]

MB and all eastern provinces except NL

none


15 m (50 ft); slow[4]

pH 5.2–7.0

89–140 cm (35–55 in)
−36 °C (−33 °F)[4]

D: low
F: low
L: high
S: medium[4]
landscape
landscape
bark
foliage and cones
Thuja plicata (western redcedar) The only native Thuja species in western North America. The lightweight, durable wood makes good insulation, and is often used in shingles and other roofing materials.

Uses: timber; landscaping, posts, pulpwood, veneers.[66][67]

AB BC

BC


46 m (150 ft); slow[66]

pH 5.1–7.1

76–305 cm (30–120 in)
−36 °C (−33 °F)[66]

D: low
F: low
L: medium
S: tolerant[66]
landscape
tree
bark
foliage and cones
Tsuga canadensis (eastern hemlock) Shade-tolerant, long-lived and slow-growing. Historically, it provided tannin for curing leather.

Uses: timber; landscaping, pulpwood.[68][69]

All eastern provinces except NL

none


32 m (105 ft); slow[68]

pH 4.2–5.7

81–140 cm (32–55 in)
−36 °C (−33 °F)[68]

D: low
F: medium
L: none
S: tolerant[68]
landscape
landscape
bark
foliage and cones
Tsuga heterophylla (western hemlock) Used widely in construction. It is also a good source of wood fibre.

Uses: timber; landscaping, pulpwood, veneers.[70][71]

AB BC

none


52 m (170 ft); slow[70]

pH 4.5–6.0

97–381 cm (38–150 in)
−31 °C (−23 °F)[70]

D: low
F: low
L: none
S: tolerant[70]
forest
landscape
bark
foliage and cone
Tsuga mertensiana (mountain hemlock) Grows well in snow-covered subalpine zones.

Uses: timber; landscaping, pulpwood, veneers.[72][73]

BC

none


38 m (125 ft); slow[72]

pH 4.5–7.3

110–360 cm (42–140 in)
−28 °C (−18 °F)[72]

D: low
F: low
L: low
S: tolerant[72]
landscape
landscape
bark
cone and foliage

Genera

[edit]
Additional growth requirements for the species listed above, grouped by genus[d]
Genus, a common name, and family (if not the pine family)[2][8] Low-oxygen soil tolerance Cold winters
needed
Frost-free
days needed
Moisture use Soil salinity
tolerance
Abies (firs) None (low for A. grandis) Yes 60–120 Medium None
Callitropsis (Alaska cedar, cypress family) Low Yes 111 Medium None
Juniperus (junipers, cypress family) Low or none Yes 120–140 Low Low
Larix (larches) None (low for L. laricina) Yes (no for L. lyallii) 60–90 Low (medium for L. laricina) None (low for L. laricina)
Picea (spruces) Low or none No (yes for
P. glauca and
P. mariana)
30–111 Medium (high for P. mariana) None (medium for P. glauca)
Pinus (pines) Low or none Yes 50–150 Medium or low Low or none (medium for P. ponderosa)
Pseudotsuga (Douglas firs) Low Yes 130 Medium Low
Taxus (yews, yew family) None Yes 140 Low None
Thuja (thuja cedars, cypress family) Medium (none for T. plicata) Yes 100–180 Medium Medium (none for T. plicata)
Tsuga (hemlocks) None Yes 80–160 Medium (high for T. mertensiana) None

See also

[edit]

Notes

[edit]
  1. ^ This list omits hybrids and varieties. The taxonomy (classification) comes from Plants of the World Online except as noted.[2]
  2. ^ Thuja cedars are often called just cedars, but so are many other species.
  3. ^ Of these sources, only Plants of the World Online lists this as Picea laxa.[2]
  4. ^ For further explanations of the columns, see the Help Document at "Growth Requirements".[74]

Citations

[edit]
  1. ^ a b c CNFI, Tree Species List.
  2. ^ a b c d POWO.
  3. ^ National Plant Data Team 2023, Characteristics, Leaf Retention.
  4. ^ a b c d e National Plant Data Team & Stevens 2023, Thuja occidentalis: Plant Guide; Characteristics.
  5. ^ a b Johnston 1991, pp. 580, 587.
  6. ^ POWO, Taxus, Juniperus, Callitropsis, Thuja.
  7. ^ National Plant Data Team 2023, Help Document.
  8. ^ a b c National Plant Data Team 2023.
  9. ^ Canadian Heritage 2017.
  10. ^ a b c d e National Plant Data Team & Wilken 2023, Abies amabilis: Plant Guide; Characteristics.
  11. ^ Crawford & Oliver 1991, pp. 22, 23.
  12. ^ a b c d National Plant Data Team & Northeast Plant Materials Program 2023, Abies balsamea: Fact Sheet; Characteristics.
  13. ^ Frank 1991, pp. 26–34.
  14. ^ a b c d National Plant Data Team & Nesom 2023, Abies grandis: Plant Guide; Characteristics.
  15. ^ Foiles, Graham & Olson 1991, pp. 52–58.
  16. ^ a b c CNFI.
  17. ^ POWO, Abies bifolia.
  18. ^ a b c d National Plant Data Team & Nesom 2023, Abies lasiocarpa: Plant Guide; Characteristics.
  19. ^ Alexander, Shearer & Shepperd 1991, pp. 60–68.
  20. ^ a b c d e National Plant Data Team 2023, Callitropsis nootkatensis: Characteristics.
  21. ^ a b Harris 1991, pp. 97–102.
  22. ^ POWO, Chamaecyparis.
  23. ^ a b c d National Plant Data Team & Stevens 2023, Juniperus scopulorum: Plant Guide; Characteristics.
  24. ^ Noble 1991, pp. 116–126.
  25. ^ a b c d National Plant Data Team et al. 2023, Juniperus virginiana: Plant Guide; Characteristics.
  26. ^ Lawson 1991, pp. 131–140.
  27. ^ a b c d National Plant Data Team & Nesom 2023, Larix laricina: Plant Guide; Characteristics.
  28. ^ Johnston 1991, pp. 141–151.
  29. ^ a b c d National Plant Data Team 2023, Larix lyallii: Characteristics.
  30. ^ Arno 1991, pp. 152–159.
  31. ^ a b c d National Plant Data Team 2023, Larix occidentalis: Characteristics.
  32. ^ Schmidt & Shearer 1991, pp. 160–172.
  33. ^ a b c d National Plant Data Team & Nesom 2023, Picea engelmannii: Plant Guide; Characteristics.
  34. ^ Alexander & Shepperd 1991, pp. 187–203.
  35. ^ a b c d National Plant Data Team & Nesom 2023, Picea glauca: Plant Guide; Characteristics.
  36. ^ POWO, Picea glauca.
  37. ^ Nienstaedt & Zasada 1991, pp. 204–226.
  38. ^ a b c d National Plant Data Team & Nesom 2023, Picea mariana: Plant Guide; Characteristics.
  39. ^ Viereck & Johnston 1991, pp. 227–237.
  40. ^ a b c d National Plant Data Team & Plant Materials Program 2023, Picea rubens: Fact Sheet; Characteristics.
  41. ^ Blum 1991, pp. 250–259.
  42. ^ a b c d National Plant Data Team & Moore 2023, Picea sitchensis: Plant Guide; Characteristics.
  43. ^ Harris 1991, pp. 260–267.
  44. ^ a b c d National Plant Data Team et al. 2023, Pinus albicaulis: Plant Guide; Characteristics.
  45. ^ Arno & Hoff 1991, pp. 268–279.
  46. ^ a b c d National Plant Data Team, Moore & Wilson 2023, Pinus banksiana: Plant Guide; Characteristics.
  47. ^ Rudolph & Laidly 1991, pp. 280–293.
  48. ^ a b c d National Plant Data Team 2023, Pinus contorta: Characteristics.
  49. ^ Lotan & Critchfield 1991, pp. 302–315.
  50. ^ a b c d National Plant Data Team 2023, Pinus flexilis: Characteristics.
  51. ^ Steele 1991, pp. 348–354.
  52. ^ a b c d National Plant Data Team 2023, Pinus monticola: Characteristics.
  53. ^ Graham 1991, pp. 385–394.
  54. ^ a b c d National Plant Data Team & Wennerberg 2023, Pinus ponderosa: Plant Guide; Characteristics.
  55. ^ Oliver & Ryker 1991, pp. 413–424.
  56. ^ a b c d National Plant Data Team & Moore 2023, Pinus resinosa: Plant Guide; Characteristics.
  57. ^ Rudolf 1991, pp. 442–455.
  58. ^ a b c d National Plant Data Team 2023, Pinus rigida: Characteristics.
  59. ^ Little & Garrett 1991, pp. 456–462.
  60. ^ a b c d National Plant Data Team & Dickerson 2023, Pinus strobus: Fact Sheet; Characteristics.
  61. ^ Wendel & Smith 1991, pp. 476–488.
  62. ^ a b c d National Plant Data Team & Stevens 2023, Pseudotsuga menziesii: Characteristics.
  63. ^ Hermann & Lavender 1991, pp. 527, 537.
  64. ^ a b c d National Plant Data Team & Stevens 2023, Taxus brevifolia: Characteristics.
  65. ^ Bolsinger & Jaramillo 1991, pp. 573, 577, 578.
  66. ^ a b c d National Plant Data Team & Stevens 2023, Thuja plicata: Plant Guide; Characteristics.
  67. ^ Minore 1991, pp. 590, 598.
  68. ^ a b c d National Plant Data Team & Stevens 2023, Tsuga canadensis: Plant Guide; Characteristics.
  69. ^ Godman & Lancaster 1991, pp. 604, 611.
  70. ^ a b c d National Plant Data Team & Stevens 2023, Thuja heterophylla: Plant Guide; Characteristics.
  71. ^ Packee 1991, pp. 613, 621.
  72. ^ a b c d National Plant Data Team & Stevens 2023, Tsuga mertensiana: Plant Guide; Characteristics.
  73. ^ Means 1991, pp. 623, 630.
  74. ^ National Plant Data Team 2023, Help Document.

References

[edit]
  • Alexander, Robert R.; Shearer, Raymond C.; Shepperd, Wayne D. (1991). "Abies lasiocarpa". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 60–68. ISBN 978-0-16-029260-6.
  • Alexander, Robert R.; Shepperd, Wayne D. (1991). "Picea engelmannii". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 187–203. ISBN 978-0-16-029260-6.
  • Arno, Stephen F. (1991). "Larix lyallii". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 152–159. ISBN 978-0-16-029260-6.
  • Arno, Stephen F.; Hoff, Raymond J. (1991). "Pinus albicaulis". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 268–279. ISBN 978-0-16-029260-6.
  • Blum, Barton M. (1991). "Picea rubens". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 250–259. ISBN 978-0-16-029260-6.
  • Bolsinger, Charles L.; Jaramillo, Annabelle E. (1991). "Taxus brevifolia". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 573–578. ISBN 978-0-16-029260-6.
  • Canadian Heritage (2017). "Provincial and territorial symbols". Ottawa, Ontario: Government of Canada. Retrieved April 19, 2024.
  • CNFI (2014). "Canada's National Forest Inventory". Ottawa, Ontario: Government of Canada. Retrieved October 15, 2023.
  • Crawford, Peggy D.; Oliver, Chadwick Dearing (1991). "Abies amabilis". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 17–23. ISBN 978-0-16-029260-6.
  • Foiles, Marvin W.; Graham, Russel T.; Olson, David F. Jr. (1991). "Abies grandis". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 52–58. ISBN 978-0-16-029260-6.
  • Frank, Robert M. (1991). "Abies balsamea". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 26–34. ISBN 978-0-16-029260-6.
  • Godman, R. M.; Lancaster, Kenneth (1991). "Tsuga canadensis". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 604–611. ISBN 978-0-16-029260-6.
  • Graham, Russell T. (1991). "Pinus monticola". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 385–394. ISBN 978-0-16-029260-6.
  • Harris, A. S. (1991). "Callitropsis nootkatensis; Picea sitchensis". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 97–102, 260–267. ISBN 978-0-16-029260-6.
  • Hermann, Richard K.; Lavender, Denis P. (1991). "Pseudotsuga menziesii". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 527–537. ISBN 978-0-16-029260-6.
  • Johnston, William F. (1991). "Larix laricina; Thuja occidentalis". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 141–151, 580–587. ISBN 978-0-16-029260-6.
  • Lawson, Edwin R. (1991). "Juniperus virginiana". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 131–140. ISBN 978-0-16-029260-6.
  • Little, Silas; Garrett, Peter W. (1991). "Pinus rigida". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 456–462. ISBN 978-0-16-029260-6.
  • Lotan, James E.; Critchfield, William B. (1991). "Pinus contorta". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 302–315. ISBN 978-0-16-029260-6.
  • Means, Joseph E. (1991). "Tsuga mertensiana". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 623–630. ISBN 978-0-16-029260-6.
  • Minore, Don (1991). "Thuja plicata". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 590–598. ISBN 978-0-16-029260-6.
  • National Plant Data Team (2023). "Citing the PLANTS Database". USDA Plants Database. Washington, DC, US: Natural Resources Conservation Service, US Department of Agriculture. Retrieved October 16, 2023.
  • National Plant Data Team; Dickerson, John (2023). "Pinus strobus". USDA Plants Database. Washington, DC, US: Natural Resources Conservation Service, US Department of Agriculture. Retrieved October 16, 2023.
  • National Plant Data Team; Moore, Lincoln M. (2023). "Picea sitchensis; Pinus resinosa". USDA Plants Database. Washington, DC, US: Natural Resources Conservation Service, US Department of Agriculture. Retrieved October 16, 2023.
  • National Plant Data Team; Moore, Lincoln M.; Wilson, Jeffrey D. Walker (2023). "Pinus banksiana". USDA Plants Database. Washington, DC, US: Natural Resources Conservation Service, US Department of Agriculture. Retrieved October 16, 2023.
  • National Plant Data Team; Nesom, Guy (2023). "Abies grandis, Abies lasiocarpa, Larix laricina, Picea engelmannii, Picea glauca; Picea mariana". USDA Plants Database. Washington, DC, US: Natural Resources Conservation Service, US Department of Agriculture. Retrieved October 16, 2023.
  • National Plant Data Team; Northeast Plant Materials Program (2023). "Abies balsamea". USDA Plants Database. Washington, DC, US: Natural Resources Conservation Service, US Department of Agriculture. Retrieved October 16, 2023.
  • National Plant Data Team; Plant Materials Program (2023). "Picea rubens". USDA Plants Database. Washington, DC, US: Natural Resources Conservation Service, US Department of Agriculture. Retrieved October 16, 2023.
  • National Plant Data Team; Stevens, Michelle (2023). "Juniperus scopulorum". USDA Plants Database. Washington, DC, US: Natural Resources Conservation Service, US Department of Agriculture. Retrieved October 16, 2023.
  • National Plant Data Team; Stevens, Michelle; Kaiser, Jerry; Dozier, Ivan (2023). "Juniperus virginiana". USDA Plants Database. Washington, DC, US: Natural Resources Conservation Service, US Department of Agriculture. Retrieved October 16, 2023.
  • National Plant Data Team; Tilley, Derek; St. John, Loren; Ogle, Dan (2023). "Pinus albicaulis". USDA Plants Database. Washington, DC, US: Natural Resources Conservation Service, US Department of Agriculture. Retrieved October 16, 2023.
  • National Plant Data Team; Wennerberg, Sarah (2023). "Pinus ponderosa". USDA Plants Database. Washington, DC, US: Natural Resources Conservation Service, US Department of Agriculture. Retrieved October 16, 2023.
  • National Plant Data Team; Wilken, Dieter (2023). "Abies amabilis". USDA Plants Database. Washington, DC, US: Natural Resources Conservation Service, US Department of Agriculture. Retrieved October 16, 2023.
  • Nienstaedt, Hans; Zasada, John C. (1991). "Picea glauca". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 204–226. ISBN 978-0-16-029260-6.
  • Noble, Daniel L. (1991). "Juniperus scopulorum". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 116–126. ISBN 978-0-16-029260-6.
  • Oliver, William W.; Ryker, Russell A. (1991). "Pinus ponderosa". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 413–424. ISBN 978-0-16-029260-6.
  • Packee, E. C. (1991). "Tsuga heterophylla". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 613–621. ISBN 978-0-16-029260-6.
  • POWO (2019). "Plants of the World Online". London: Royal Botanic Gardens, Kew. Retrieved January 10, 2023. See their terms-of-use license.
  • Rudolf, Paul O. (1991). "Pinus resinosa". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 442–455. ISBN 978-0-16-029260-6.
  • Rudolph, T. D.; Laidly, P. R. (1991). "Pinus banksiana". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 280–293. ISBN 978-0-16-029260-6.
  • Schmidt, Wyman C.; Shearer, Raymond C. (1991). "Larix occidentalis". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 160–172. ISBN 978-0-16-029260-6.
  • Steele, Robert (1991). "Pinus flexilis". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 348–354. ISBN 978-0-16-029260-6.
  • Viereck, Leslie A.; Johnston, William F. (1991). "Picea mariana". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 227–237. ISBN 978-0-16-029260-6.
  • Wendel, G. W.; Smith, H. Clay (1991). "Pinus strobus". In Burns, Russell M.; Honkala, Barbara H. (eds.). Silvics of North America, Volume 1. Conifers. Washington, DC: US Forest Service, Department of Agriculture (US Government Printing Office). pp. 476–488. ISBN 978-0-16-029260-6.