IUCN threat status:

Near Threatened (NT)

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Taxaceae -- Yew family

    Charles L. Bolsinger and Annabelle E. Jaramillo

    Pacific yew (Taxus brevifolia), also called western yew, is a  coniferous tree associated with several conifer and hardwood tree species  on a variety of sites. Pacific yew tolerates shade, and in undisturbed  stands is usually found as an understory tree. Growth of such trees is  slow, but where the overstory has been removed or thinned, diameter growth  on undamaged yew trees may increase considerably. Pacific yew rarely  exceeds 60 cm (24 in) in d.b.h., and 15 m (49 ft) in height. The largest  on record is 142 cm (56 in) in d.b.h., and 18 m (60 ft) in height (28).  The wood is hard, heavy, and resistant to decay. Although not of great  interest to the forest products industry, it has many special uses. The  bark of Pacific yew contains a drug, taxol, that is being used in cancer  research, so demand for yew bark by the National Cancer Institute has  increased dramatically in recent years (9).


Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

Charles L. Bolsinger

Source: Silvics of North America

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