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Madia sativa - Molina.

Common Name Chile Tarweed, Coast tarweed
Family Asteraceae or Compositae
USDA hardiness Coming soon
Known Hazards None known
Habitats Sand, gravel, open grassland and disturbed soils[69].
Range S. America - Chile.
Edibility Rating    (3 of 5)
Other Uses    (2 of 5)
Weed Potential Yes
Medicinal Rating    (0 of 5)
Care (info)
Moist Soil Full sun
Madia sativa Chile Tarweed, Coast tarweed

Madia sativa Chile Tarweed, Coast tarweed


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Physical Characteristics

 icon of manicon of flower
Madia sativa is a ANNUAL growing to 0.8 m (2ft 7in). It is in flower from July to August, and the seeds ripen from August to September. The species is monoecious (individual flowers are either male or female, but both sexes can be found on the same plant) and is pollinated by Insects.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It cannot grow in the shade. It prefers moist soil.

UK Hardiness Map US Hardiness Map


M. viscosa.

Plant Habitats

 Cultivated Beds;

Edible Uses

Edible Parts: Oil  Oil  Seed
Edible Uses: Oil  Oil

Seed - raw or cooked[257]. Although quite small, the seed was a staple food for some native North American Indian tribes[257]. Rich in oil, it can be roasted then ground into a powder and eaten dry, mixed with water, or combined with cereal flours[94, 94, 183, 257]. The seed was also used as piñole[257]. The seed contains about 41% of a sweet edible oil, about 28% can be extracted from the seed in an oil press[2, 46, 61]. Of a high quality, it can be used as a substitute for olive oil[2, 183]. The oil does not solidify until the temperature drops to -11°c[95].

References   More on Edible Uses

Medicinal Uses

Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.

None known

References   More on Medicinal Uses

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Other Uses

Oil  Oil

The seed is rich in an oil which is a good substitute for olive oil. It does not solidify until the temperature is lower than -11°c. A good lubricant, the oil is also used in soap making[94, 95].

Special Uses

References   More on Other Uses

Cultivation details

An easily grown plant[2], it succeeds in any good garden soil[1]. Prefers a deep open sharply drained soil in a sunny position[200]. This species is sometimes cultivated in Europe for the oil in its seed[2]. The flowers open in the morning or evening, closing when exposed to bright sunlight[200].

References   Carbon Farming Information and Carbon Sequestration Information

Temperature Converter

Type a value in the Celsius field to convert the value to Fahrenheit:



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Plant Propagation

Seed - sow in mid spring in situ and only just cover the seed. Germination should take place within a couple of weeks.

Other Names

If available other names are mentioned here

Native Range

NORTHERN AMERICA: Canada (British Columbia), United States (Oregon, Washington, California) SOUTHERN AMERICA: Argentina (Mendoza, Chubut, Neuquén, Río Negro, Tierra del Fuego), Chile

Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status

IUCN Red List of Threatened Plants Status :

Related Plants
Latin NameCommon NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther
Madia densifoliaShowy TarweedAnnual0.8 -  LMHNM20 
Madia dissitifloraGrassy TarweedAnnual0.8 -  LMHNM20 
Madia elegansCommon Madia, Showy tarweed, Spring madia, Wheeler's tarweedAnnual1.5 0-0  LMHSNM20 
Madia glomerataMountain TarweedAnnual0.8 -  LMHNM211

Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.


Expert comment



Botanical References


Links / References

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Readers comment

Cristian Youlton   Mon Jul 29 08:14:42 2002

Link: Plantas Medicinales uses, propieties, history, enviromental requeriments

Knack   Thu May 27 22:01:30 2004

Madia sativa 'Molina' has water repellent foliage that is extremely difficult to wet; even with the use of a wetting agent surfactant. The foliage contains many tiny hairs also.

It appears suddenly, in patches of numerous individuals and grows prolificly; completely covering an area to a height of 30cm in only 2 weeks where there is abundant sun and rainfall. It can do this in very poor soil.

Although it does best with rainfall, it can inhabit well drained slopes and can even be found areas having arrid summers such as eastern Washington, USA. When the climate becomes persistently hot and dry, it simply shrivels up, releases its seeds for next year's growth, and disappears until then.

A brief description of its oil at http://www.ibiblio.org/herbmed/eclectic/kings/linum_oleu.html#madia

There is some confusion with another plant named "tarweed" that is found in coastal california having Latin name Hemizonia fasciculata.

Link: ITIS Links to other sites containing info about madia sativa Molina

Likes both rain and sun, and soil of low fertility. Typically takes over disturbed bare areas where topsoil has been removed; where few other plants will take hold. I live about 19 km south of downtown Spokane, Washington, USA. My USDA hardiness zone is 5b.

Pedro Montero   Mon Jan 29 2007

Diccionario On Line De Las Plantas Medicinales Uno de los mejores diccionarios de plantas medicinales

Pedro Plantasnet   Mon Jul 6 2009

Diccionaro on line de las plantas medicinales Completo diccionario con plantas medicinales de todo el mundo

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Subject : Madia sativa  
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