Please donate to support our ‘Plants to Save the Planet’ Project. The Project is directed at enabling designers of ‘carbon farms’ and ‘food forests’: agroecosystems of perennial plants, to choose the most appropriate plants for their requirements and site conditions. We are working on a subset of plants in the PFAF database identified as having the most potential for inclusion in such designs. We are adding search terms and icons to those plants pages, and providing a range of search options aligned to categories of plants and crop yields, with Help facilities including videos. More >>>

Follow Us:

 

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
Fully Hardy Well drained soil Moist Soil Full sun
Centaurea iberica Iberian Star Thistle, Iberian knapweed


Centaurea iberica Iberian Star Thistle, Iberian knapweed

 

Translate this page:

Summary


Physical Characteristics

 icon of manicon of flower
Centaurea iberica is a BIENNIAL growing to 0.9 m (3ft).
It is hardy to zone (UK) 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: acid, neutral and basic (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

Habitats

 Cultivated Beds;

Edible Uses

Edible Parts: Leaves
Edible Uses:

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

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].

Our new book Edible Shrubs is now available.

Edible Shrubs provides detailed information, attractively presented, on over 70 shrub species. They have been selected to provide a mix of different plant sizes and growing conditions. Most provide delicious and nutritious fruit, but many also have edible leaves, seeds, flowers, stems or roots, or they yield edible or useful oil.

Read More

Edible Shrubs Book

Other Uses

None known

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].

Temperature Converter

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

Fahrenheit:

image

The PFAF Bookshop

Plants For A Future have a number of books available in paperback and digital form. Book titles include Edible Plants, Edible Perennials, Edible Trees, and Woodland Gardening. Our new book to be released soon is Edible Shrubs.

Shop Now

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.

Found In

Countries where the plant has been found are listed here if the information is available

Afghanistan, Asia, Europe, India, Jordan, Kazakhstan, Kyrgyzstan, Lebanon, Mediterranean, North America, Pakistan, Russia, Tajikistan, Turkmenistan, USA, Uzbekistan.

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 NameEdibility RatingMedicinal Rating
Centaurea acaulis 00
Centaurea calcitrapaCommon Star Thistle, Red star-thistle11
Centaurea chamaerhaponticum 20
Centaurea cyanusCornflower, Garden cornflower, Blue Bottle, Cornflower22
Centaurea depressaIranian knapweed20
Centaurea jaceaBrown Knapweed11
Centaurea melitensisMaltese Star Thistle01
Centaurea montanaMountain Cornflower, Perennial cornflower, Mountain Bluet02
Centaurea nigraBlack Knapweed, Lesser knapweed12
Centaurea raphanina 10
Centaurea scabiosaGreater Knapweed02
Centaurea solstitialisSt. Barnaby's Thistle, Yellow star-thistle11

 

Print Friendly and PDF

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

QR Code

What's this?

This is a QR code (short for Quick Response) which gives fast-track access to our website pages. QR Codes are barcodes that can be read by mobile phone (smartphone) cameras. This QR Code is unique to this page. All plant pages have their own unique code. For more information about QR Codes click here.

1. Copy and print the QR code to a plant label, poster, book, website, magazines, newspaper etc and even t-shirts.

2. Smartphone users scan the QR Code which automatically takes them to the webpage the QR Code came from.

3. Smartphone users quickly have information on a plant directly for the pfaf.org website on their phone.

Add a comment

If you have important information about this plant that may help other users please add a comment or link below. Only comments or links that are felt to be directly relevant to a plant will be included. If you think a comment/link or information contained on this page is inaccurate or misleading we would welcome your feedback at admin@pfaf.org. If you have questions about a plant please use the Forum on this website as we do not have the resources to answer questions ourselves.

* Please note: the comments by website users are not necessarily those held by PFAF and may give misleading or inaccurate information.

To leave a comment please Register or login here All comments need to be approved so will not appear immediately.

Subject : Centaurea iberica  
All the information contained in these pages is Copyright (C) Plants For A Future, 1996-2012.
Plants For A Future is a charitable company limited by guarantee, registered in England and Wales. Charity No. 1057719, Company No. 3204567,
Web Design & Management
This work is licensed under a Creative Commons License. Some information cannot be used for commercial reasons or be modified (but some can). Please view the copyright link for more information.