| 21. | Each head generally has 5 disc florets but no ray florets.
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| 22. | The yellow florets are supported by white bracts at the flowerhead.
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| 23. | The florets are yellow and may age to red or purple.
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| 24. | The plant has narrow, floating leaves and white ray florets.
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| 25. | These have blue to mauve ray florets and yellow disc florets.
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| 26. | These have blue to mauve ray florets and yellow disc florets.
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| 27. | At the center is a cluster of several tubular disc florets.
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| 28. | Young larvae eat out the ripe fruit of a thyme floret.
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| 29. | They contain 4 to 8 yellow-red to red florets.
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| 30. | The yellow ray florets are each about half a centimeter long.
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