| Populus grandidentata | |
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Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Malpighiales |
| Family: | Salicaceae |
| Genus: | Populus |
| Section: | Populus sect. Populus |
| Species: | P. grandidentata |
| Binomial name | |
| Populus grandidentata | |
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| Natural range | |
Populus grandidentata, commonly called large-tooth aspen, big-tooth aspen, American aspen, [2] Canadian poplar, [2] or white poplar, [2] is a deciduous tree native to eastern North America.
The name Populus is from the Latin for poplar, and grandidentata refers to the coarse teeth on the leaves (grandis meaning "large", and dentata meaning "toothed").
Populus grandidentata is a medium-sized deciduous tree native to North America, found mostly in the northeastern United States and southeastern Canada. Leaves are similar to Populus tremuloides , but slightly larger and having larger teeth. [3] The leaves tremble in the wind as those of P. tremuloides do. Bark of younger trees is olive-green, thin and smooth; after 30–40 years, the bark is gray, thick and rough with grooves.
Bigtooth aspens produce seeds from wind-pollinated flower clusters, known as catkins. The tree is dioecious, meaning that male and female flowers are on separate trees, which flower from mid-April to mid-May depending on the climate zone. The seed, a two-valved capsule, is distributed widely by the wind. Seed production begins around 10 years old. Individuals can also reproduce through the roots after a disturbance event, such as fire or harvest; the roots of the dead/cut tree will begin to send up suckers, creating identical individuals, and can result in a stand of clones that resemble that individual. Seeds viability is high (around 80%) but despite this and the sheer number of seeds produced (a mature tree can produce over 1 million per season), very few actually end up germinating due to their short viability (two weeks), natural growth inhibitor, and high likelihood of landing in spots unsuitable for germination, which must be done on the surface of moist soil. [4]
Bigtooth aspens are dioecious, medium-sized deciduous trees with straight trunks and gently ascending branches. Heights at maturity are around 60–80 feet (18–24 m) with diameters of 8–10 inches (20–25 cm). They are fast growing and are relatively short-lived; stands will begin to deteriorate after 60–70 years, while individuals can live up to 100 years. They often constitute early successional species of their landscapes. Roots are shallow and wide spreading; lateral root growth in a forest may be as far as 60 feet (18 m). [4] Generally, four to five lateral roots originate from the tree, and then branch within 2 feet (60 cm); vertical, penetrating roots near the base anchor the tree.
The range of Populus grandidentata extends from Virginia north to Maine and Cape Breton Island, Nova Scotia; west to southeastern Manitoba and Minnesota; south through Iowa to extreme northeastern Missouri; and east through Illinois, Indiana, Ohio, and West Virginia. Disjunct populations are found in Kentucky, Tennessee, North Carolina, and South Carolina. [5]
The species is able to adapt to a wide range of soils, though it is most abundant on sands, loamy sands and light sandy loams. Big-tooth aspens can tolerate sandy uplands and high, rocky sites. The depth to the water table is generally about 5 feet (1.5 m). [6] Soil must be moist but well-aerated for good growth. Being very shade intolerant, most shaded stems die. They are pioneer species on disturbed sites, persisting in successional communities until senescence. Rapid height growth of suckers allows it to outcompete other sprouting species such as red oak (Quercus rubra) and red maple (Acer rubrum) on many sites. In the absence of disturbance, it is soon replaced by conifers and hardwoods. In the Great Lakes Region at the turn of the 20th century, many mature pine forests were logged and burned. Bigtooth and quaking aspens frequently dominated the postdisturbance forests. Without fire or other disturbance, these forests are being replaced by later successional, shade-tolerant species. This aspen usually grows in even-aged, mixed stands, most commonly with quaking aspens. Codominant in both hardwood and conifer forests, it does not occur as a subdominant because of its extreme shade intolerance. Quaking aspen (Populus tremuloides) is the predominant species in aspen stands in the Great Lakes region, but bigtooth aspen dominates on drier, upland sites. Aspen stands dominated by bigtooth aspens are generally more open than those dominated by quaking aspens. It is more disease resistant than P. tremuloides. The most serious disease is hypoxylon canker (caused by Entoleuca mammata ). Other rots, fungi, and root decay affect this species. A preferred host of the gypsy moth, tree death occurs when near-complete defoliation by the gypsy moth is followed by an infestation of Armillaria fungus. The ambrosia beetle ( Xyleborus saxesceni ) attacks fire-damaged bigtooth aspens. Commonly, it occurs in areas that frequently burn, such as large upland areas distant from water and upwind of natural fire breaks, such as lakes.
Various wildlife feed on the bark, foliage, and twig buds. [7]
The wood weighs 27 pounds (12 kg) per foot and is light-colored, straight-grained, fine-textured, and soft. It is used primarily for pulp, but can be used to make particle board and structural panels. Minor uses include log homes, pallets, boxes, match splints, chopsticks, hockey stick components, and ladders. The bark is pelletized for fuel and supplemental cattle feed.
It is occasionally cultivated. A cultivar, Grandmont, has recently been developed. [8]
Populus is a genus of 25–30 species of deciduous flowering plants in the family Salicaceae, native to most of the Northern Hemisphere. English names variously applied to different species include poplar, aspen, and cottonwood.
Populus section Populus, of the Populus (poplar) genus, includes the aspen trees and the white poplar Populus alba. The five typical aspens are all native to cold regions with cool summers, in the north of the Northern Hemisphere, extending south at high altitudes in the mountains. The White Poplar, by contrast, is native to warmer regions, with hot, dry summers. These trees are all medium-sized deciduous trees ranging 15–30 metres (49–98 ft) tall.
Picea mariana, the black spruce, is a North American species of spruce tree in the pine family. It is widespread across Canada, found in all 10 provinces and all 3 territories. It is the official tree of the province of Newfoundland and Labrador and is that province's most numerous tree. The range of the black spruce extends into northern parts of the United States: in Alaska, the Great Lakes region, and the upper Northeast. It is a frequent part of the biome known as taiga or boreal forest.
Larix laricina, commonly known as the tamarack, hackmatack, eastern larch, black larch, red larch, or American larch, is a species of larch native to Canada, from eastern Yukon and Inuvik, Northwest Territories east to Newfoundland, and also south into the upper northeastern United States from Minnesota to Cranesville Swamp, West Virginia; there is also an isolated population in central Alaska.
Populus alba, commonly called silver poplar, silverleaf poplar, or white poplar, is a species of poplar, most closely related to the aspens. It is native to a region spanning from the Atlas Mountains of Africa, through most of South and Central Europe, into Central Asia; it has been introduced to many temperate, moist regions worldwide. It grows in moist sites, often by watersides, in regions with hot summers and cold to mild winters.
White poplar is a common name used to refer to several trees in the genus Populus, including:
Betula papyrifera is a short-lived species of birch native to northern North America. Paper birch is named after the tree's thin white bark, which often peels in paper-like layers from the trunk. Paper birch is often one of the first species to colonize a burned area within the northern latitudes, and is an important species for moose browsing. Primary commercial uses for paper birch wood are as boltwood and sawlogs, while secondary products include firewood and pulpwood. It is the provincial tree of Saskatchewan and the state tree of New Hampshire.
Betula populifolia, known as the gray birch, is a deciduous tree in the family Betulaceae. It is native to eastern North America and is most commonly found in the northeast United States as well as southern Quebec, New Brunswick, and Nova Scotia. The tree is a pioneer species that is commonly found in sites following disturbance, such as fire or logging. Gray birches don't have as much economic value as other birch species but are still commonly used as ornamental trees.
Poplar may refer to:
Populus tremuloides is a deciduous tree native to cooler areas of North America, one of several species referred to by the common name aspen. It is commonly called quaking aspen, trembling aspen, American aspen, mountain or golden aspen, trembling poplar, white poplar, and popple, as well as others. The trees have tall trunks, up to 25 metres tall, with smooth pale bark, scarred with black. The glossy green leaves, dull beneath, become golden to yellow, rarely red, in autumn. The species often propagates through its roots to form large clonal groves originating from a shared root system. These roots are not rhizomes, as new growth develops from adventitious buds on the parent root system.
Populus deltoides, the eastern cottonwood or necklace poplar, is a species of cottonwood poplar native to North America, growing throughout the eastern, central, and southwestern United States as well as the southern Canadian prairies, the southernmost part of eastern Canada, and northeastern Mexico.
Populus trichocarpa, the black cottonwood, western balsam-poplar or California poplar, is a deciduous broadleaf tree species native to western North America. It is used for timber, and is notable as a model organism in plant biology.
Carya glabra, the pignut hickory, is a common, but not abundant species of hickory in the oak-hickory forest association in the Eastern United States and Canada. Other common names are pignut, sweet pignut, coast pignut hickory, smoothbark hickory, swamp hickory, and broom hickory. The pear-shaped nut ripens in September and October, has a sweet maple like smell, and is an important part of the diet of many wild animals. The wood is used for a variety of products, including fuel for home heating. Its leaves turn yellow in the Fall.
The New England-Acadian forests are a temperate broadleaf and mixed forest ecoregion in North America that includes a variety of habitats on the hills, mountains and plateaus of New England and New York State in the Northeastern United States, and Quebec and the Maritime Provinces of Eastern Canada.
Populus tremula is a species of poplar native to cool temperate regions of the Old World.
Coniferous swamps are forested wetlands in which the dominant trees are lowland conifers such as northern white cedar. The soil in these swamp areas is typically saturated for most of the growing season and is occasionally inundated by seasonal storms or by winter snow melt.
Aspen is a common name for certain tree species; some, but not all, are classified by botanists in the section Populus, of the Populus genus.
Entoleuca mammata is a species of fungus in the genus Entoleuca. It is responsible for the plant disease hypoxylon canker in hardwood trees such as quaking aspen and other aspens and poplars, Salix myrsinifolia and other willow species, rowan, Sitka alder, birch, apple, oak, and hop-hornbeam.
Rivière-du-Moulin Ecological Reserve is a strictly protected ecological reserve in the province of Quebec, Canada. It contains a stand of mature eastern hemlock trees, with some white pines, a combination that was once common in Quebec but has almost disappeared due to forestry and farming.
This article incorporates public domain material from the United States Government.
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