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Trending: butterfly milkweed (Asclepias tuberosa) — 1105 observations this week

iNaturalist · 2026-06-28

Butterfly milkweed is having a standout week on iNaturalist, with over 1,100 research-grade sightings logged by citizen scientists across North America. This native wildflower is peaking in bloom right now, making it one of the most-watched plants of the season.

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1,105 research-grade observations of butterfly milkweed were logged on iNaturalist in a single week, placing it among the most observed plant species.

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The observation spike signals peak bloom for Asclepias tuberosa, a native milkweed critical to monarch butterfly reproduction and migration.

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High citizen-science engagement with this species reflects growing public interest in native plant gardening and pollinator conservation.

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