Dahlia flower bud head TS, brightfield photomicrograph
Dahlias are perennial plants, with mostly tuberous roots. While some have herbaceous stems, others have stems which lignify in the absence of secondary tissue and resprout following winter dormancy, allowing further seasons of growth. As a member of the Asteraceae the flower head is actually a composite (hence the older name Compositae) with both central disc florets and surrounding ray florets. Each floret is a flower in its own right, but is often incorrectly described as a petal, particularly by horticulturalists. The modern name Asteraceae refers to the appearance of a star with surrounding rays.
Size: 3307px × 3267px
Photo credit: © Scenics & Science / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: brightfield, bud, dahlia, flower, head, micrograph, microscope, photomicrograph, section, slide, stained, ts
