The capitulum is considered the most derived form of inflorescence. An inflorescence is a group or cluster of Flowers arranged on a stem that is composed of a main Branch or a complicated arrangement of branches [1] Flower heads found outside Asteraceae (such as those of Eryngium or Jasione) shows lesser degrees of specialization. The family Asteraceae or Compositae (known as the aster, daisy, or sunflower family) is the largest family of Flowering Eryngium is a Genus of about 230 species of annuals and perennials with hairless and usually spiny leaves, and dome-shaped Jasione is a Genus of Flowering plants within the family Campanulaceae which are native to Europe.
 Diagram of a flower head. Note bracts surrounding the flowers, which would be absent on a capitulum. |
.jpg/120px-Bellis_perennis_white_(aka).jpg) Flower head of a common daisy (Bellis perennis) |
 Flowers open in succession in head of a sunflower (Helianthus annuus) |
 Close up of the ray corolla of a Hieracium lachenalii; every "petal" is actually a separate five-petaled flower complete with its own stamens and making its own fruit. Bellis perennis is a common European species of Daisy, often considered the archetypal Species of that name though many other related The sunflower ( Helianthus annuus) is an Annual plant in the family Asteraceae and native to the Americas, with a large flowering Hieracium lachenalii also known as Common Hawkweed or Yellow Hawkweed is a Woodland perennial which makes its home |
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