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Centaurea nigra
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Centaurea nigra
Centaurea nigra
Credit: Photo by Leo Michels. Usage: Public Domain


Centaurea nigra
Centaurea nigra
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. Vol. 3: 557.


Centaurea nigra
Centaurea nigra
USDA, NRCS. 2009. The PLANTS Database (http://plants.usda.gov, 22 June 2009). National Plant Data Center, Baton Rouge, LA 70874-4490 USA.



Theft from a single author is plagiarism. Theft from two is comparative study. Theft from three or more is research. (Unknown)

| Southern crabgrass | Southern dewberry | Southern jointweed | Southern Lady Fern | Southern live oak | Southern Masterwort | Southern Milk Vetch | Southern pine | Southern Pitch Pine | Southern ragweed |

| Roundleaf eupatorium | Roundleaf fluvellin | Roundleaf goldenrod | Roundleaf ragwort | Roundleaf serviceberry | Roundleaf thoroughwort | Roundleaf thoroughwort | Roundleaf violet | Roundleaf yellow violet | Roundpod St. Johnswort |

| Mouron rouge | Mouse barley | Mouse Ear Hawkweed | Mouse-ear chickweed | Mouse-ear chickweed | Mouse-ear | Mouse-ear hawkweed | Mouseear chickweed | Mousetailplant | Moutarde brune |

 Research is what I'm doing when I don't know what I'm doing. (Wernher Von Braun)