Search results
Results from the WOW.Com Content Network
The great majority of conifer genera and species are evergreen, retaining their leaves for several (2–40) years before falling, but unusual deciduous conifers occur in five genera (Larix, Pseudolarix, Glyptostrobus, Metasequoia and Taxodium), shedding their leaves in autumn and leafless through the winter.
Christmas trees are also vulnerable to fungal pathogens and their resultant illnesses such as root rot, and, in the U.S. state of California, sudden oak death. Douglas-fir trees in particular are vulnerable to infections from plant pathogens such as R. pseudotsugae. Larger pests also pose a threat to Christmas tree plantations and harvests.
Christmas tree decorated with lights, stars, and glass balls Glade jul by Viggo Johansen (1891), showing a Danish family's Christmas tree North American family decorating Christmas tree (c. 1970s) A Christmas tree is a decorated tree, usually an evergreen conifer, such as a spruce, pine or fir, associated with the celebration of Christmas. [1]
Abies grandis is a large evergreen conifer growing to 40–70 metres (130–230 feet) tall, exceptionally 100 m (330 ft), with a trunk diameter of up to 2 m (6 + 1 ⁄ 2 ft). The dead tree tops sometimes fork into new growth. [4] The bark is 5 centimetres (2 inches) thick, reddish to gray (but purple within), furrowed, and divided into slender ...
The tree was brought to the Caribbean in the 19th century. [5] In various countries, such as Namibia, it is considered a dominant species of woody plant encroachment . [ 6 ] In Cuba, where it is known as El Marabú or Marabou weed, it has become a serious invasive species problem, occupying about 4,900,000 acres (20,000 km 2 ) of agricultural land.
The Norway spruce has a wide distribution for it being planted for its wood, and is the species used as the main Christmas tree in several countries around the world. It was the first gymnosperm to have its genome sequenced. The Latin specific epithet abies means "like Abies, Fir tree". [5]
There was the 2021 tree, which came from Elkton, Md., that students from a nearby school gave a grand send-off by lining local streets, and the one from the little town of Florida, in New York’s ...
Cryptomeria (literally "hidden parts") is a monotypic genus of conifer in the cypress family Cupressaceae. It includes only one species, Cryptomeria japonica (syn. Cupressus japonica L.f.). It is considered to be endemic to Japan, where it is known as Sugi . [2] The tree is called Japanese cedar [3] or Japanese redwood [4] [5] in English.