head image
filler Home button Advanced search Herberia Partners Herbaria team members Herberia links Contact
family select
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z


genus select
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z


search



leaf What is an Herbarium?

leaf Genus Descriptions

leaf Species Descriptions

leaf Ontario FEC V-Types

leaf Bibliography

leaf Terminology

leaf Who Collects the Plants?

leaf Collector Biographies

leaf Nomenclature Primer

leaf Website Information

Northern Ontario Plant Database

leafleaf

Northern Ontario Vegetation Type (V-type)


NW-V13: Red Pine Mixedwood


Summary: A mixedwood stand dominated by red pine and often white birch in the overstorey. Trembling aspen and white pine were the next most common species, occurring, respectively, in 50% and 40% of sample plots. A variety of other conifer and hardwood tree species occurred with less than 30% frequency. Regeneration is dominated by balsam fir. The canopy of this V-type tends to be more open and the understorey less developed than in NW-V12. The rich shrub layer contains both low and tall shrubs, but low shrubs are more common, including bush honeysuckle, blueberries, and Canada fly honeysuckle. Tall shrubs, such as beaked hazel, serviceberry, mountain maple, and mountain alder, as well as balsam fir and red maple regen may be abundant on some sites.

The herb layer is rather poor, compared to NW-V12. It is dominated by the characteristic boreal forest species, although twinflower does not occur in significant numbers, however, wild sarsaparilla and largeleaf aster may form dense colonies. The forest floor is covered with a mixture of conifer and broadleaf litter, though feathermosses may occasionally form extensive patches on the forest floor.

The NW-V13 Vegetation Type is most similar to NW-V27 (Red Pine Conifer), except that, in the latter type, white birch plays a minor role in the overstorey and other hardwood species are absent. NW-V13 probably represents a successional stage of NW-V27.

Soil & Ecosite Types: The Red Pine Mixedwood Vegetation Type (NW-V13) occurs most commonly in the Quetico/Rainy River/Dryden regions of northwestern Ontario. It occurs most commonly on Ecosite Types ES 11 (Red Pine-White Pine-Jack Pine, very shallow soil), ES 15 (Red Pine-White Pine: sandy soil), ES 24 (Red Pine-White Pine: fresh, fine loamy soil), and sometimes on ES 18 (Red Pine-White Pine: fresh, coarse loamy soil). This V-type occurs on dry to fresh, rapidly drained, acidic (non-calcareous), coarse-textured, upland mineral soils (mainly S3, and SS6).

Note: The percentage of sample plots that contained overstorey tree species is given in square brackets after each scientific name. Other species are listed in order of frequency, according to the NW-FEC manual.

Trees:
overstorey:
red pine (Pinus resinosa) [10]
white birch (Betula papyrifera) [7]
trembling aspen (Populus tremuloides) [5]
white pine (Pinus strobus) [4]
jack pine (Pinus banksiana) [3]
balsam fir (Abies balsamea) [3]
largetooth aspen (Populus grandedentata) [2]
black spruce (Picea mariana) [1]
white spruce (Picea glauca) [1]
regeneration:
balsam fir (Abies balsamea)
trembling aspen (Populus tremuloides)
red maple (Acer rubrum)
Shrubs:
tall shrubs:
beaked hazel (Corylus cornuta)
serviceberries (Amelanchier spp.)
mountain maple (Acer spicatum)
mountain alder (Alnus viridis subsp. crispa)
low shrubs:
bush honeysuckle (Diervilla lonicera)
lowbush blueberry (Vaccinium angustifolium)
velvetleaf blueberry (Vaccinium myrtilloides)
Canada fly honeysuckle (Lonicera canadensis)
Dwarf Shrubs & Herbs:
dwarf shrubs:
twinflower (Linnaea borealis)
forbs:
wild lily-of-the-valley (Maianthemum canadense)
wild sarsaparilla (Aralia nudicaulis)
bunchberry (Cornus canadensis)
bluebead lily (Clintonia borealis)
largeleaf aster (Eurybia macrophylla)
Bryophytes:
Schreber's feathermoss (Pleurozium schreberi)
wavyleaf moss (Dicranum polysetum)
Last Modified: