Taxus brevifolia
An evergreen conifer native to the Pacific Northwest that typically grows as a slow-growing understory tree about 6–15 m tall with dense linear leaves, female plants bearing conspicuous red arils around seeds, bark yielding taxol used in cancer drug development, and near-threatened status due to overharvesting
Common Names
Pacific Yew, Western Yew
Summary
Pacific yew is a slow-growing evergreen conifer native to western North America, commonly forming an understory shrub or small tree with an irregular broad crown and drooping branches. Distinctive features include dark yellow-green leaves 0.5–1 inch long arranged in two flat sprays, red arils around seeds on female plants, and scaly red-brown bark; wood is hard, heavy, and resistant to decay.
Cultivation favors cool, moist, well-drained soils with tolerance for sun to shade; reproduction occurs by seed or cuttings, though seed germination is slow and stratification is often required; seeds are dispersed by birds after aril consumption. Taxol, a cancer drug, is produced from bark, prompting conservation concerns and historic bark harvesting; wood has uses in bows and other crafts; the Pacific yew is valued for shade-tolerant understory plantings and habitat planting, with caution due to poisonous bark, leaves, and seeds.
Lifecycle
Perennial
Height
590-984 inches
Spread
36-72 inches
Hardiness Zones
Zones 5a-9b
Sunlight Requirements
Ideally partial shade (Partial Sun equates to Partial Shade), tolerates full sun and full shade
Soil Type
Deep, moist, well-drained soil
Soil Drainage
Well-drained soils
Soil pH
Mildly acidic to mildly alkaline soils; no fixed pH, thrives across a wide pH range as long as soils are well-drained.
Bloom Color
Insignificant
Bloom Time
Spring (April–June)
Foliage Color
Dark green
Fall Foliage Color
Green
Leaf Lifecycle
Evergreen needle
Growth Rate
Slow-growing
Seasons of Interest
Spring and Fall
Propagation Methods
Seeds, Layering, Cuttings
Attracts Wildlife
Birds: Yes; red arils around seeds eaten by songbirds and seeds dispersed by birds, Pollinators: Wind (no attraction of bees, hummingbirds, butterflies, or other pollinators indicated)
Taxonomy
- Taxonomic Rank
- Species
- Author
- Nutt.
- Publication
- N. Amer. Sylv. 3: 86. (1849)
Superior Taxa
- Kingdom
- Plantae
- Subkingdom
- Pteridobiotina
- Phylum
- Pinophyta
- Class
- Pinopsida
- Subclass
- Cupressidae
- Order
- Cupressales
- Family
- Taxaceae
- Genus
- Taxus
Synonyms
Taxus bourcieri Taxus occidentalis Taxus baccata var. brevifolia Taxus baccata subsp. brevifolia Taxus brevifolia var. polychaeta Taxus brevifolia var. reptaneta Taxus brevifolia subsp. reptaneta Taxus brevifolia subsp. polychaeta Taxus lindleyana