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Centaurea iberica - Trevir. ex Spreng.

Common Name Iberian Star Thistle, Iberian knapweed
Family Asteraceae or Compositae
USDA hardiness 5-9
Known Hazards None known
Habitats Mountain slopes in Tibet at elevations of 500 - 800 metres[266].
Range S.E. Europe to S.W. Asia.
Edibility Rating    (1 of 5)
Other Uses    (0 of 5)
Weed Potential Yes
Medicinal Rating    (2 of 5)
Care (info)
Fully Hardy Well drained soil Moist Soil Full sun
Centaurea iberica Iberian Star Thistle, Iberian knapweed


Centaurea iberica Iberian Star Thistle, Iberian knapweed

 

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Summary


Physical Characteristics

 icon of manicon of flower
Centaurea iberica is a BIENNIAL growing to 0.9 m (3ft).
See above for USDA hardiness. It is hardy to UK zone 6. It is in flower from July to August. The species is hermaphrodite (has both male and female organs) and is pollinated by Bees, flies, Lepidoptera (Moths & Butterflies). The plant is self-fertile.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils, prefers well-drained soil and can grow in nutritionally poor soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It cannot grow in the shade. It prefers dry or moist soil and can tolerate drought.

UK Hardiness Map US Hardiness Map

Synonyms

Plant Habitats

 Cultivated Beds;

Edible Uses

Edible Parts: Leaves
Edible Uses:

Edible cooked[145, 177]. The part used is not specified.

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.


Antioxidant and antimicrobial activity. Antibacterial and antifungal. Used in Turkish folk medicine to alleviate the pain and inflammatory symptoms in rheumatoid arthritis, high fever, headache, and for healing of wounds. In its native range, various uses in folk medicine are proving to have a scientific basis [1d].

References   More on Medicinal Uses

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Other Uses

None known

Special Uses

References   More on Other Uses

Cultivation details

Succeeds in ordinary garden soil[1, 200]. Prefers a well-drained fertile soil and a sunny position[200]. Tolerates dry, low fertility and alkaline soils[200]. This species is closely related to C. calcitrapa. Members of this genus are rarely if ever troubled by browsing deer[233].

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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Plants For A Future have a number of books available in paperback and digital form. Book titles include Edible Plants, Edible Perennials, Edible Trees,Edible Shrubs, Woodland Gardening, and Temperate Food Forest Plants. Our new book is Food Forest Plants For Hotter Conditions (Tropical and Sub-Tropical).

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Plant Propagation

Seed - sow April in a cold frame. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in the summer.

Other Names

If available other names are mentioned here

Brazil: centáurea-gigante English: Iberian knapweed; Iberian starthistle; Spanish centaury-thistle Spanish: abrepuño gigante; azulejo gigante. Others: Murrar.

Native Range

TEMPERATE ASIA: Afghanistan, Cyprus, Iran, Iraq, Israel, Jordan, Lebanon, Syria, Turkey, Russian Federation-Ciscaucasia (Ciscaucasia), Armenia, Azerbaijan, Georgia, Russian Federation (Dagestan), Kazakhstan (southeast), Kyrgyzstan, Tajikistan, Turkmenistan, Uzbekistan, China (Xinjiang Uygur Zizhiqu (northwest)) TROPICAL ASIA: India (Jammu and Kashmir), Pakistan EUROPE: Moldova, Ukraine (Krym), Bulgaria, Bosnia and Herzegovina, Greece, Montenegro, Romania, Serbia

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.

This plant can be weedy or invasive. Can be weedy in its native environment. Established as an invasive alien is Argentina. Centaurea iberica is on prohibited weed lists in Chile and Australia; and is a Class A noxious weed in the US in California and Oregon, and a prohibited noxious weed in Arizona, Nevada and Wyoming.

Conservation Status

IUCN Red List of Threatened Plants Status : This taxon has not yet been assessed.

Related Plants
Latin NameCommon NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther
Centaurea acaulis Perennial0.0 -  LMHNDM001
Centaurea calcitrapaCommon Star Thistle, Red star-thistleBiennial0.6 0-0  LMHNDM11 
Centaurea chamaerhaponticum  0.0 -  LMHNDM20 
Centaurea cyanusCornflower, Garden cornflower, Blue Bottle, CornflowerAnnual1.0 0-0 FLMHNDM222
Centaurea depressaIranian knapweedAnnual/Perennial0.3 6-9  LMHNDM20 
Centaurea jaceaBrown KnapweedPerennial0.6 5-9  LMHNDM110
Centaurea melitensisMaltese Star ThistleAnnual0.5 6-9  LMHNDM010
Centaurea montanaMountain Cornflower, Perennial cornflower, Mountain BluetPerennial0.5 3-9 FLMHNDM023
Centaurea nigraBlack Knapweed, Lesser knapweedPerennial0.6 4-8  LMHNDM120
Centaurea raphanina Perennial0.0 -  LMHNDM10 
Centaurea scabiosaGreater KnapweedPerennial0.9 4-8  LMHNDM02 
Centaurea solstitialisSt. Barnaby's Thistle, Yellow star-thistleAnnual/Biennial0.6 5-9  LMHNDM110

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

Author

Trevir. ex Spreng.

Botanical References

50200

Links / References

For a list of references used on this page please go here

Readers comment

John W. Ross   Sun Mar 8 2009

This one is considered a noxious, invasive weed and should be identified as such along with it's being edible.

USDA Plant Profiles Lists problem plants

Dardar matzuy in the Flora of Israel website.   May 19 2013 12:00AM

Centaurea iberica is very common in Israel on most non-sandy soils, and it exhibits an interesting variability in its flowers' coloring, from a pure white to a deep purple through shades of yellow. There always are however, purplish tips to the stamens' bundle. It is not known here to be edible, and the flower heads are armed with quite formidable thorns.
Flora of Israel @HUJ

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Subject : Centaurea iberica  
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