ACHILLEA millefolium occidentali (Western Yarrow) is a flowering plant species that belongs to the family Asteraceae. It is native to western North America, including the western United States and western Canada.Its major use is in renovation and re-establishment of projects in dryland areas. Plants have finely divided, fern-like leaves, woolly hairs and a sharp tasting and bitter scent. Flowers are white and arise in flat-topped bunches.
The plant typically grows to a height of 1 to 3 feet and produces clusters of white to pinkish flowers that bloom from late spring to early fall. The flowers are arranged in flat-topped clusters and have a distinctive smell when crushed. The leaves are finely divided and feathery in appearance, giving rise to the common name "milfoil".
Western Yarrow is known for its medicinal properties and has been used for centuries by indigenous peoples for a variety of ailments, including fever, headaches, and stomach issues. The plant contains several active compounds, including flavonoids and volatile oils, which are believed to be responsible for its medicinal effects.
In addition to its medicinal uses, Western Yarrow is also a popular ornamental plant in gardens and landscaping. It is drought-tolerant, easy to grow, and attracts a variety of pollinators, including butterflies and bees.
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Botanical Name: ACHILLEA millefolium occidentalis
Common Name: Western Yarrow
Hardiness Zones: 4-9
Plant Type: Perennials
Native Range: Western U.S.
Exposure: Full sunlight
Bloom Season: Summer
Water Requirement: very Low
Flower Characteristics: White Flowers with a pungent scent
Gardening Use: Fields, Coastal areas.