Kingdom:
Phylum:
Angiosperms
Order:
Asterales
Family:
Genus:
Species:
rigida
ID:
115973

Status:
valid

Authors:
[Soland.]

Source:
gcc

Year:
1814

Citation Micro:
Enum. Pl. Suppl. [Willdenow] 61. 1814 [Jul-Dec 1814]

WFO Identifier:
wfo-0000115302



Common Names

  • Centaurea rigida
  • Stiff Knapweed
  • Stiff Cornflower


Searching for Centaurea rigida? Discover Suppliers and Request Free Samples Now!

Find Suppliers & Request Samples

Description

Centaurea rigida (also called Rigid Star-thistle, among many other common names) is a biennial herb that grows up to 1 m tall. It is native to the Mediterranean region and is found in dry, sunny places such as grasslands and rocky slopes. It has small, purple flowers and rigid, gray-green leaves.

Uses & Benefits

Centaurea rigida is used as an ornamental plant in gardens and can be used as a ground cover. It is also used in traditional medicine.

Cultivars, Varieties & Sub-species

Centaurea rigida var. schizophylla (Nábělek) Wagenitz

Flower, Seeds and Seedlings

The flower of Centaurea rigida is a purple daisy-like flower with a yellow center. The seeds are small, black and oval-shaped. The seedlings are thin and have long, narrow leaves.

Searching for Centaurea rigida? Discover Suppliers and Request Free Samples Now!

Find Suppliers & Request Samples

Cultivation and Propagation

Centaurea rigida is a perennial that can be propagated by seed or division. It prefers full sun and well-drained soil. Water regularly during the growing season and fertilize lightly. Deadhead spent flowers to promote new growth.

Where to Find Centaurea rigida

Centaurea rigida is native to the Mediterranean region and can be found in the wild in this region. It can also be found in nurseries and garden centers in the United States.

Centaurea rigida FAQ

What is the ideal temperature for Centaurea rigida?

Centaurea rigida prefers temperatures between 65-75°F (18-24°C).

What type of soil is best for Centaurea rigida?

Centaurea rigida prefers well-drained, sandy soil with a pH of 6.5-7.5.

How much sunlight does Centaurea rigida need?

Centaurea rigida prefers full sun to partial shade.

Species in the Centaurea genus

Centaurea pseudomaculosa, Centaurea spicata, Centaurea loscosii, Centaurea triniifolia, Centaurea gadorensis, Centaurea messenicolasiana, Centaurea werneri, Centaurea grisebachii, Centaurea noguerensis, Centaurea papposa, Centaurea vermiculigera, Centaurea saxicola, Centaurea linifolia, Centaurea antitauri, Centaurea lactiflora, Centaurea vavilovii, Centaurea aplolepa, Centaurea sphaerocephala, Centaurea integrans, Centaurea ognjanoffii, Centaurea stevenii, Centaurea centauroides, Centaurea pinnata, Centaurea aeolica, Centaurea cankiriensis, Centaurea ebenoides, Centaurea ceratophylla, Centaurea simonkaiana, Centaurea rothmaleriana, Centaurea chalcidicaea, Centaurea pinnatifida, Centaurea nervosa, Centaurea foveolata, Centaurea elbrusensis, Centaurea triumfettii, Centaurea hermanni, Centaurea djebel-amouri, Centaurea chrysantha, Centaurea monticola, Centaurea melitensis, Centaurea affinis, Centaurea kizildaghensis, Centaurea filiformis, Centaurea scillae, Centaurea vatevii, Centaurea sterilis, Centaurea handelii, Centaurea androssovii, Centaurea litardierei, Centaurea oxylepis,

Species in the Asteraceae family

Aaronsohnia pubescens, Aaronsohnia factorovskyi, Abrotanella filiformis, Abrotanella rostrata, Abrotanella linearis, Abrotanella trilobata, Abrotanella muscosa, Abrotanella inconspicua, Abrotanella trichoachaenia, Abrotanella caespitosa, Abrotanella nivigena, Abrotanella pusilla, Abrotanella linearifolia, Abrotanella papuana, Abrotanella rosulata, Abrotanella emarginata, Abrotanella fertilis, Abrotanella spathulata, Abrotanella purpurea, Abrotanella patearoa, Abrotanella submarginata, Abrotanella diemii, Abrotanella scapigera, Abrotanella forsterioides, Acamptopappus shockleyi, Acamptopappus sphaerocephalus, Acanthocephalus benthamianus, Acanthocephalus amplexifolius, Acanthocladium dockeri, Acanthodesmos distichus, Acanthodesmos gibarensis, Acanthospermum humile, Acanthospermum consobrinum, Acanthospermum glabratum, Acanthospermum microcarpum, Acanthospermum hispidum, Acanthospermum australe, Acanthospermum lecocarpoides, Acanthostyles buniifolius, Acanthostyles saucechicoensis, Achillea buiana, Achillea conrathii, Achillea cucullata, Achillea styriaca, Achillea clavennae, Achillea cappadocica, Achillea huber-morathii, Achillea ptarmicoides, Achillea sieheana, Achillea barrelieri,