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Larix laricina, commonly known as the tamarack, [3] hackmatack, [3] eastern larch, [3] black larch, [3] red larch, [3] or American larch, [3] 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 ...
The main differences between hardwoods and softwoods is that the softwoods completely lack vessels (pores). [1] The main softwood species (pines, spruces, larches, false tsugas) also have resin canals (or ducts) in their structure.
The hybrid Dunkeld larch is widely grown as a timber crop in Northern Europe, valued for its fast growth and disease resistance. Larch on oak was the traditional construction method for Scottish fishing boats in the 19th century. [citation needed] Larch has also been used in herbal medicine; see Bach flower remedies and Arabinogalactan for details.
Chart illustrating leaf morphology terms. The following terms are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (that is, the leaf blade or 'lamina' is undivided) or compound (that is, the leaf blade is divided into two or more leaflets). [1]
Evergreen trees also lose leaves, but each tree loses its leaves gradually and not all at once. Most tropical rainforest plants are considered to be evergreens, replacing their leaves gradually throughout the year as the leaves age and fall, whereas species growing in seasonally arid climates may be either evergreen or deciduous.
Gould's Ecoregions of Texas (1960). [1] These regions approximately correspond to the EPA's level 3 ecoregions. [2] The following is a list of widely known trees and shrubs found in Texas. [3] [4] [5] Taxonomic families for the following trees and shrubs are listed in alphabetical order by family. [6]
Alcock's spruce Pinaceae (pine family) Picea asperata: dragon spruce Pinaceae (pine family) Picea aurantiaca: orange spruce Pinaceae (pine family) Picea brachytyla: Sargent's spruce Pinaceae (pine family) Picea breweriana: Brewer's spruce Pinaceae (pine family) 92 Picea chihuahuana: Chihuahua spruce Pinaceae (pine family) Picea crassifolia ...
Members of the family Pinaceae are trees (rarely shrubs) growing from 2 to 100 metres (7 to 300 feet) tall, mostly evergreen (except the deciduous Larix and Pseudolarix), resinous, monoecious, with subopposite or whorled branches, and spirally arranged, linear (needle-like) leaves. [3] The embryos of Pinaceae have three to 24 cotyledons.