Bright field light micrograph of florets from a common knapweed (Centaurea nigra) flower. Common Knapweed blooms from June to October.

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Size: 3316px × 5284px
Photo credit: © KARL GAFF/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: -, angiosperm, asteraceae, biological, biology, black, botanical, botany, centaurea, close, common, compositae, flora, florets, flower, flowering, knapweed, lesser, light, micrograph, microscopy, nature, nigra, perennial, plant, plants