monarch butterfly on lantana

Adult monarchs prefer to feed on sturdy plants that have relatively flat surfaces (sunflowers, asters) or long multi-flowering inflorescences (gayfeather), where the nectar is easily accessed, as in many species in the Asteraceae (sunflower) family. Common characteristics of this family include clusters of flowers with shallow, easily accessed nectar.

en.wikipedia.org/wiki/Monarch_butterfly

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