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Fiorinia externa, the elongate hemlock scale, was accidentally introduced into North America from Japan and is now established in most parts of the north-eastern U.S. [2] It has become a serious pest of hemlock (Tsuga) and some related conifers from the family Pinaceae. Dense colonies of the scale insect result in yellowing, shedding of leaves ...
Poison hemlock is a stout, erect plant with a center stalk and light green stems and fern-like leaves that can grow up to 12 feet tall in Washington state’s temperate climate and rich volcanic ...
An Eastern Hemlock branch at the Kortright Centre for Conservation. Tsuga canadensis, also known as eastern hemlock, [3] eastern hemlock-spruce, [4] or Canadian hemlock, and in the French-speaking regions of Canada as pruche du Canada, is a coniferous tree native to eastern North America. It is the state tree of Pennsylvania. [5]
The leaves are two- to four-pinnate, finely divided and lacy, overall triangular in shape, up to 50 centimetres (20 inches) long and 40 cm (16 in) broad. [4] Hemlock's flower is small and white; they are loosely clustered and each flower has five petals. [5] A biennial plant, hemlock produces leaves at its base the first year but no flowers. In ...
This fast-growing plant, with large green leaves and dark berries in the fall, is poisonous and has been known to kill livestock that eat pokeweed growing in pastures. How to avoid toxic plants in ...
The leaves are 5–20 mm (0.20–0.79 in) long and 1.8–2 mm (0.071–0.079 in) broad, flattened, not tapering toward their ends, with a rounded or slightly notched apex; they radiate outward in all directions from the twigs, and smell of tangerine if crushed.
Here's what you need to know about some of the more common plants to stay away from, like poison hemlock, poison ivy and poison oak.
Tsuga (/ ˈ s uː ɡ ə /, [3] from Japanese 栂 (ツガ), the name of Tsuga sieboldii) is a genus of conifers in the subfamily Abietoideae of Pinaceae, the pine family.The English-language common name "hemlock" arose from a perceived similarity in the smell of its crushed foliage to that of the unrelated plant hemlock. [4]