Toxicodendron rydbergii, the western poison ivy[3] or northern poison oak, is a species of Toxicodendron in the cashew family native to North America. As a poison ivy, it can cause …

Western poison ivy (T. rydbergii) is a low-growing shrub (rather than a vine, like its eastern relative, T. radicans) that occurs widely across the western states, Great Plains, and northeast.

Western Poison Ivy is on the noxious weed list for Minnesota due to its toxic, rash-producing properties, as well as its propensity to form large colonies from underground rhizomes. It has a …

Western poison ivy (or poison oak) is a close relative of the more familiar poison ivy that occurs across more eastern portions of North America. Unlike its cousin, however, it grows as a small …

SPECIES: Toxicodendron radicans, T. rydbergii This Fire Regime Table summarizes characteristics of fire regimes for vegetation communities in which eastern and western poison …

Toxicodendron rydbergii contains a chemical that in some people causes painful swelling, rashes and eruptions of the outer-skin, thus the common name "Poison Ivy". Importance to Wildlife, …

General description: Western poison ivy is a smallish, nonclimbing shrub usually about knee high, with a single stem and only a few stubby branches or no branches at all. Leaves: The leaves …

Toxicodendron rydbergii is a perennial shrub or subshrub with simple, unbranched stems 0.3-2 m in height and growing from branched subterranean stolons that often form thickets. Leaves are …

Toxicodendron rydbergii the western poison ivy, is a species of Toxicodendron in the cashew family. It is native to most of Canada from the Maritimes to British Columbia, and most of the …

Toxicodendron rydbergii. Family: Anacardiaceae – Cashew Family. Dioecious shrubs; 3.9” to 11.8” (1 to 3 dm) tall or more. Leaves: alternate; compound; 3 leaflets; the terminal leaflet is …