Search results
Results From The WOW.Com Content Network
A single tallow tree can produce nearly 100,000 viable seeds annually that can remain in the soil for several years before sprouting. A mature stand can produce 4,500 kilograms of seeds per hectare per year. [17] These seeds are easily carried to different places by birds and water. Tallow trees can remain productive for 100 years. [17]
American sweetgum (Liquidambar styraciflua), also known as American storax, [3] hazel pine, [4] bilsted, [5] redgum, [3] satin-walnut, [3] star-leaved gum, [5] alligatorwood, [3] gumball tree, [6] or simply sweetgum, [3] [7] is a deciduous tree in the genus Liquidambar native to warm temperate areas of eastern North America and tropical montane regions of Mexico and Central America.
Trees portal; Tolerance of Tree Species; Silvics of North America, an encyclopedia of characteristics for around 200 tree species native to the United States published by the United States Forest Service. Zeigerwerte der Pflanzen Mitteleuropas (German) Archived 2015-08-07 at the Wayback Machine
The American elm is a deciduous tree which, under ideal conditions, can grow to heights of 21 to 35 meters (69 to 115 feet). [3] The trunk may have a diameter at breast height (dbh) of more than 1.2 m (4 ft), supporting a high, spreading umbrella-like canopy.
Western white pine is a large tree, regularly growing to 30–50 metres (98–164 ft) tall. It is a member of the white pine group, Pinus subgenus Strobus, and like all members of that group, the leaves ('needles') are in fascicles (bundles) of five, [5] with a deciduous sheath. The needles are finely serrated, [5] and 5–13 cm (2–5 in) long.
In northern climates they can be left outdoors during summer or placed under growing lights to promote fuller growth. When planted outside, the trees should be provided with adequate space, as they can grow to a large size. The trees are widely planted in coastal Southern California, where they can grow to well over 30 m (100 feet). [5]
As the trees grow taller in denser forest, they lose their lower branches, such that the foliage may start as high as 34 m (110 ft) off the ground. [19] Douglas-firs in environments with more light may have branches much closer to the ground. The bark on young trees is thin, smooth, gray, and contains numerous resin blisters.
The seeds are winged and disperse by wind and water. Pollarded trees do not produce flowers, as these form only on mature wood. Paulownia tomentosa requires full sun for proper growth. [15] [16] It is tolerant of pollution and can tolerate many soil types [specify] [disputed – discuss]. It can also grow from small cracks in pavements and walls.