Jepson eFlora: Taxon page
Vascular Plants of California
Key to families | Table of families and genera
Previous taxon Index to accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M |
| N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Next taxon

Centaurea jacea nothosubsp. pratensis

Centaurea jacea nothosubsp. pratensis (W.D.J. Koch) Čelak.
Inflorescence: heads radiant (discoid); peduncle swollen below head or not; phyllary tip appendages +- scarious, light to dark brown, flat to +- concave, coarsely dentate to dissected into fine, wire-like lobes. Flower: disk flower corolla 15--22 mm. Fruit: pappus scales <= 1 mm, white or tan. Chromosomes: 2n=22, 44.
Ecology: Grassland, disturbed places, montane forest; Elevation: 150--1100 m. Bioregional Distribution: NCoRO, CaR; Distribution Outside California: to southern Canada, eastern United States; native to Europe or locally derived from hybridization of parental taxa native to Europe. Flowering Time: Aug--Oct Note: Variable, outcrossing derivative of fertile hybrid (Centaurea jacea subsp. jacea × Centaurea jacea subsp. nigra). Populations show much pl-to-pl variation, often with some individuals approaching one or the other parental subsp.
Synonyms: Centaurea ×moncktonii C.E. Britton; Centaurea ×pratensis Thuill., illeg.
Jepson eFlora Author: Error CHECK eFlora Treatments
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)
Noxious Weed listed by CDFA
Weed listed by Cal-IPC

Previous taxon: Centaurea jacea subsp. nigra
Next taxon: Centaurea melitensis

Name Search


Citation for this treatment: Error CHECK eFlora Treatments 2012, Centaurea jacea nothosubsp. pratensis, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on April 11, 2021.

Citation for the whole project: Jepson Flora Project (eds.) 2021, Jepson eFlora,, accessed on April 11, 2021.