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hemlock tree

hemlock tree

Not to be confused with poison hemlock which is a weed, the hemlock tree is an actual tree with flat pine-type needles and cones, and it’s edible, just like pine, the most common use being tea made from the needles. Look like pine trees and can grow very large, up to 180 feet! (60m tall). Has cones like pine cones. There is a poisonous lookalike called the YEW tree, which also has flat soft needle-like leaves with red berries instead of pine cones. Hemlock needles are flat, but bright green on top and silvery underneath. Hemlocks have cones, not berries. Branches are used to make tea for colds, cough, kidney problems ad as a source of vitamin C. Inner bark used for tea for stomach problems, diarrhea, colds, flu, lung and coughs. Expectorant, astringent, helps stop bleeding.

Tsuga

 

(hemlock), a genus of evergreen coniferous trees of the family Pinaceae. The shoots are pendant and slender. The needles, which are on short petioles, are mainly flat, linear-lanceolate, and blunt and notched at the apex. The pollen spikes (mi-crostrobiles) are solitary, and the pollen has no air sacs. The cones, which are woody and pendant and measure 1.5–2.5 cm in length, mature in the year of flowering and fall off completely. The cone scales are small, and the seeds are winged. Propagation is by seeds and cuttings. Hemlocks are moisture-loving and shade-tolerant. They are raised as ornamentals and for their lightweight wood, which is used mainly to manufacture paper. The bark contains tannins.

There are about ten species (according to other data, 15), distributed in the Himalayas, China, Japan, and North America. Six species have been introduced into the USSR, including the eastern hemlock (T. canadensis) and T. diversifolia. The eastern hemlock is native to North America. A tree measuring about 30 m in height, it has arching branches and pectinate needles. T. diversifolia is native to Japan. A tree measuring up to 25 m tall, it has horizontal branches and needles of varying length (1 to 1.5 cm) that protrude in all directions. The species is found outside Sukhumi and in Western Europe, where it grows in the form of a shrub.

REFERENCE

Dallimore, W., and A. B. Jackson. A Handbook of Coniferae and Ginkgoaceae, 4th ed. London, 1966.

T. G. LEONOVA

References in periodicals archive ?
OSU got the idea of enlisting the silver fly in the fight to save the hemlock after an OSU master's degree student found that the flies were plentiful in Northwest hemlock trees.
INSECTICIDE TREATMENTS (ALPHABETICAL BY ACTIVE INGREDIENT) APPLIED TO HEMLOCK TREES IN 7 GALLON CONTAINERS TO CONTROL THE HEMLOCK WOOLLY ADELGID.
In its native range of Asia, the HWA causes little damage to the hemlock trees it feeds on.
This pest has the potential to spread and cause further damage to eastern hemlock trees in the Park (Buck, 2003).
The objective of this study was to characterize clear specimen material properties and their variation by location within small-diameter Douglas-fir and western hemlock trees from western Washington with the goal of gaining a better understanding of utilization of small-diameter, fast-grown trees for use in manufacturing engineered wood composites.
The Douglas fir is really a close relative of hemlock trees and not a true spruce or fir.
The comfortable, spacious guest rooms are nestled among the giant fir and hemlock trees on the shore of beautiful Lake Crescent and offer wonderful views of the lake.
After hearing that the sites were in danger of being closed, he organized a group of volunteers to remove thousands of pounds of litter, treat infected hemlock trees and maintain several adopt-a-stream sites.
As the work proceeds, contractors will bring in 39 live, mature Douglas fir, incense cedar, coast redwood, giant sequoia, western red cedar and Canadian hemlock trees, all 35 to 40 feet tall.
Seen first as white cottony egg masses, then as wooly white individuals, the insect sucks plant juices and causes needle discoloration and eventual decline of hemlock trees.
Faced with a likely, rapid death of the park's hemlock trees, officials at Great Smoky Mountains National Park are counting on a non-native species--a tiny, black predator beetle--to control another non-native species.
Western hemlock trees from unthinned stands yielded slightly greater volumes than trees from thinned stands.