Madia sativa is native to the Americas, where it is distributed in two main areas:
- The west coast of North America from Alaska and British Columbia, through all the western mountain ranges of California, to Baja California.
- South America in Chile and Argentina.
Madia sativa is an annual herb varying in size from 20 centimeters tall to well over two meters, the leafy stem branching or not. It is coated densely in sticky resin glands and it has a strong scent. The hairy leaves are linear or lance-shaped, the lowest up to 18 centimeters long.
The inflorescence is generally a cluster of flower heads lined with bristly, glandular phyllaries. Each head bears approximately 8 yellowish ray florets a few millimeters long around a center of several disc florets tipped with dark anthers.
|Wikispecies has information related to: Madia sativa|
- Calflora Database: Madia sativa (Coastal Tarweed)
- Jepson Manual eFlora (TJM2) treatment of Madia sativa
- UC Photos gallery — Madia sativa
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