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Poison oak is a leafy shrub that grows in shady areas of your yard where it can reach six feet in height. The leaves and stems of the western poison oak plant (Toxicodendron) can release an oil ...
Toxicodendron diversilobum is extremely variable in growth habit and leaf appearance. It grows as a dense 0.5–4 metres (1 + 1 ⁄ 2 –13 feet) tall shrub in open sunlight, a treelike vine 3–9 m (10–30 ft) and may be more than 30 m (100 ft) long with an 8–20 centimetres (3 + 1 ⁄ 4 – 7 + 3 ⁄ 4 inches) trunk, as dense thickets in shaded areas, or any form in between.
Poison oak is not an oak (Quercus, family Fagaceae), but this common name comes from the leaves' resemblance to white oak (Quercus alba) leaves, while poison ivy is not an ivy (Hedera, family Araliaceae), but has a superficially similar growth form. Technically, the plants do not contain a poison; they contain a potent allergen.
Mango leaves, stems, peels, and sap contain urushiol, an allergen also present in poison ivy, poison oak, and poison sumac that can cause urushiol-induced contact dermatitis in susceptible people. [citation needed] Cross-reactions between mango contact allergens and urushiol have been observed. Those with a history of poison ivy or poison oak ...
It was SoCal nurseryman Paul Ecke Sr. who took a little-known, spindly outdoor plant from Central America in the early 1920s and bred it into a hardy potted plant "whose tapering red leaves have ...
Poison oak refers to two plant species in the genus Toxicodendron, both of which can cause skin irritation: Toxicodendron diversilobum or Pacific poison oak, found in western North America Toxicodendron pubescens or Atlantic poison oak, found in southeastern North America
Poison Oak. This shrub, blooming ... and label the plants in your area, yard, and home. ... one is experiencing an allergic reaction after coming into contact with a poisonous plant, you can call ...
The differences in toxicity in poison ivy, poison oak, and poison sumac are due to differences in the side chains of the chemicals in these plants. In general, poison ivy has a C 15 side chain, poison oak has a C 17 side chain and poison sumac has a C 13 side chain. The dermatitis shows itself in painful and long continued swellings and ...