Madia sativa

Madia sativa, known by the common names coast tarweed[1][2] and Chilean tarweed, is a species of flowering plant in the aster family found in parts of western North and South America.

Madia sativa
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Genus:
Madia
Species:
M. sativa
Binomial name
Madia sativa
Molina, 1782

Distribution

Madia sativa is native to the Americas, where it is distributed in two main areas:

The plant grows in many types of habitats, including disturbed areas. In western North America it is most common on coastal grasslands and nearby areas.

Description

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.

The fruit is a flat, hairless achene with no pappus. This plant has been grown for its seed oil.[3]

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See also

References
  1. "BSBI List 2007". Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-01-25. Retrieved 2014-10-17.
  2. "Madia sativa". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 27 January 2016.
  3. Flora of North America
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