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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 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.
Larix lyallii, the subalpine larch, or simply alpine larch, is a deciduous, coniferous tree native to northwestern North America. It lives at high altitudes, from 1,500 to 2,900 meters (4,900 to 9,500 ft), [3] in the Rocky Mountains of Idaho, Montana, British Columbia, and Alberta. There is a disjunct population in the Cascade Range of Washington.
A leaf (pl.: leaves) is a principal appendage of the stem of a vascular plant, [1] usually borne laterally above ground and specialized for photosynthesis.Leaves are collectively called foliage, as in "autumn foliage", [2] [3] while the leaves, stem, flower, and fruit collectively form the shoot system. [4]
Taylor (1959) [8] had noted that the most obvious morphological difference between typical Picea glauca and typical P. engelmannii was the cone scale, and Horton (1956,1959) [9] [10] found that the most useful diagnostic features of the two spruces are in the cone; differences occur in the flower, shoot and needle, "but those in the cone are ...
The sepals, collectively called the calyx, are modified leaves that occur on the outermost whorl of the flower. [2] They are leaf-like, in that they have a broad base, stomata and chlorophyll and may have stipules. Sepals are often waxy and tough, and grow quickly to protect the flower as it develops.
Taiga spruce forest in the Kenai National Wildlife Refuge, Alaska. Trees in this environment tend to grow closer to the trunk and not "bush out" in the normal manner of spruce trees. The forests of the taiga are largely coniferous, dominated by larch, spruce, fir and pine.
Larix sibirica, the Siberian larch or Russian larch, is a frost-hardy tree native to western Russia, from close to the Finnish border east to the Yenisei valley in central Siberia, where it hybridises with the Dahurian larch L. gmelinii of eastern Siberia; the hybrid is known as Larix × czekanowskii.