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| Home | Start key | Fact sheets | Glossary | Common flowers | ||
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Asteraceae heads are of three types, comprising two types of florets. Disc florets are actinomorphic, with a corolla tube and 5-lobed limb. Ray florets are zygomorphic, with a short tube and one long, usually strap-shaped limb.
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| only disc florets or discoid All flowers are disc florets. |
only ray florets or ligulate All flowers are ray florets. Some fully double cultivars based on normally radiate heads have only ray florets but are not actually ligulate. |
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| both ray florets and disc florets (radiate) Ray florets are along the margin in one or several series, and disc florets in the center. |
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