Difference between revisions of "Toxicodendron vernix"

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|common_name=Poison Sumac, Poison Elder
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|features=deciduous, flowers, fall color
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'''Poison sumac''' (''[[Toxicodendron]]'' ''vernix'' or ''[[Rhus]] vernix'') is a woody [[shrub]] or small tree growing to 7 m (20 ft) tall.<ref name=Keeler>Our Native Trees and How to Identify Them (Keeler)</ref> All parts of the plant contain a resin called [[urushiol]] that causes skin and mucous membrane irritation to humans. When burned, inhalation of the smoke may cause the rash to appear on the lining of the lungs, causing extreme pain and possibly fatal respiratory difficulty.
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Poison sumac is a shrub or small tree, up to 20 feet in height, with 7-13 leaflets per leaf. These are oval to oblong, acuminate, cuneate at the base, undulate, glabrous or slightly pubescent beneath, and are usually 2-4 inch long. Its flowers are greenish, in loose axillary panicles 3-8 inches long. The fruits are subglobose, gray, flattened and 0.2 inches across.
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Rhus vernix, Linn. (R. venenata, DC.). Poison Sumac. Poison Elder. Fig. 3019, p. 2078. Shrub or tree, to 20 ft.: lfts. 7-13, oval to oblong, acuminate, cuneate at base, undulate, glabrous or slightly pubescent beneath usually 2-4 in. long: fls. greenish, in loose axillary panicles 3-8 in. long: fr. subglobose, gray, flattened, 1/5in. across. Swamps, R. I., Ont., and Minn., south to Fla. and La. S.S. 3:107, 108. Em. 575.—Very poisonous: foliage turns to a brilliant scarlet in autumn.
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Rhus vernix, Linn. (R. venenata, DC.). Poison Sumac. Poison Elder. Shrub or tree, to 20 ft.: lfts. 7-13, oval to oblong, acuminate, cuneate at base, undulate, glabrous or slightly pubescent beneath usually 2-4 in. long: fls. greenish, in loose axillary panicles 3-8 in. long: fr. subglobose, gray, flattened, 1/5in. across. Swamps, R. I., Ont., and Minn., south to Fla. and La.—Very poisonous: foliage turns to a brilliant scarlet in autumn.
 
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Latest revision as of 18:34, 28 April 2010


Poison sumac leaves


Plant Characteristics
Habit   shrub

Height: ⇕ 10 ft"ft" can not be assigned to a declared number type with value 10.
Width: ⇔ 10 ft"ft" can not be assigned to a declared number type with value 10.
Lifespan: ⌛ perennial
Poisonous: ☠ Very poisonous
Bloom: ❀ early summer, mid summer, late summer
Cultivation
Exposure: ☼ sun
Features: ✓ deciduous, flowers, fall color
USDA Zones: 3 to 9
Flower features: ❀ orange, yellow
Scientific Names

Anacardiaceae >

Toxicodendron >

vernix >


Poison sumac (Toxicodendron vernix or Rhus vernix) is a woody shrub or small tree growing to 7 m (20 ft) tall.[1] All parts of the plant contain a resin called urushiol that causes skin and mucous membrane irritation to humans. When burned, inhalation of the smoke may cause the rash to appear on the lining of the lungs, causing extreme pain and possibly fatal respiratory difficulty.

Poison sumac is a shrub or small tree, up to 20 feet in height, with 7-13 leaflets per leaf. These are oval to oblong, acuminate, cuneate at the base, undulate, glabrous or slightly pubescent beneath, and are usually 2-4 inch long. Its flowers are greenish, in loose axillary panicles 3-8 inches long. The fruits are subglobose, gray, flattened and 0.2 inches across.


Read about Toxicodendron vernix in the Standard Cyclopedia of Horticulture 

Rhus vernix, Linn. (R. venenata, DC.). Poison Sumac. Poison Elder. Shrub or tree, to 20 ft.: lfts. 7-13, oval to oblong, acuminate, cuneate at base, undulate, glabrous or slightly pubescent beneath usually 2-4 in. long: fls. greenish, in loose axillary panicles 3-8 in. long: fr. subglobose, gray, flattened, 1/5in. across. Swamps, R. I., Ont., and Minn., south to Fla. and La.—Very poisonous: foliage turns to a brilliant scarlet in autumn.


The above text is from the Standard Cyclopedia of Horticulture. It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article. Click on "Collapse" in the header to hide this text.


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References

External links


  1. ↑ Our Native Trees and How to Identify Them (Keeler)
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