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Determining the inflorescence type can often be difficult. In this feature, only several distinctive, easy-to-recognize types are offered. If your inflorescence is not one of the first three types, then choose axillary or otherwise arranged. Note that inflorescences may be of several orders; for example, flowers may be arranged in a panicle of umbels. In this case, you would choose the state umbel, because at least part of the inflorescence is umbellate, or you could choose umbel and/or axillary or otherwise arranged.
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| solitary Only one flower or head per cut stem. |
spike or spike-like; +/- dense on elongate axis At least part of the inflorescence spike-like. Such inflorescences are linear, most often cylindrical, but may be one sided, or two-ranked, and the flowers loose to sometimes so dense that the flowering axis is not visible. Axis usually elongate, though some spikes are short. Spike-like inflorescences may be upright, bending, or hanging. |
umbel At least part of the inflorescence umbellate; flat-topped or convex, with pedicels arising from a common point. Umbels may be single or compound -- an umbel of umbels. |
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| axillary or otherwise arranged Flowers or heads axillary, in clusters, arranged in panicles, corymbs, cymes, or other arrangements, and/or in combinations among these. |
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