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Centaurea nigra

Centaurea nigra L.

Centaurea nigra L. var. radiata DC.

Black Knapweed

KingdomPlantaePlants, but not fungi, lichens, or algae (from Stearn’s Botanical Latin)
SubkingdomTracheobiontaVascular plants—plants with a “circulatory system” for delivering water and nutrients
DivisionMagnoliophytaFlowering plants, also known as angiosperms
ClassMagnoliopsidaDicotyledons—plants with two initial seed leaves
SubclassAsteridaeA large class that encompasses asters
OrderAsteralesFlowering plants with a central disk flower and surrounding petals, like daisies
FamilyAsteraceaeThe aster family, which also includes daisies and sunflowers; from the Greek ἀστήρ, “star,” for the star-shaped flowers
GenusCentaureaFrom the Latin and a reference to the Centaur Chiron who was supposed to have discovered the medicinal uses of a plant in Greece that came to be called Centaury
SpeciesnigraBlack, referring to the color of the seeds

About plant names...

[An article has not been written yet.]

Centaurea nigra description by Thomas H. Kent, last updated 14 Nov 2013.

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Centaurea nigra (Black Knapweed)

7/17/2010 · Mackworth Island, Falmouth, ME
≈ 5 × 3½" (13 × 9.2 cm) ID is uncertain

Centaurea nigra (Black Knapweed)

7/17/2010 · Mackworth Island, Falmouth, ME
≈ 7 × 7" (16 × 18 cm) ID is uncertain

Centaurea nigra (Black Knapweed)

7/17/2010 · Mackworth Island, Falmouth, ME
≈ 5 × 3½" (13 × 9.2 cm) ID is uncertain

Centaurea nigra (Black Knapweed)

7/17/2010 · Mackworth Island, Falmouth, ME
≈ 7 × 4½" (17 × 11 cm) ID is uncertain

Range:

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