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Common milkweed blooming across eastern North America in record numbers

iNaturalist · 2026-07-11

Common milkweed is surging in citizen-science observations this week, with 1,176 research-grade sightings logged on iNaturalist. This peak likely reflects the plant's midsummer bloom period, when it's most visible and recognizable across eastern North America.

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1,176 research-grade observations of common milkweed recorded on iNaturalist in a single week

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Common milkweed (Asclepias syriaca) ranked among the most observed plant species platform-wide this week

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Observation spike aligns with peak summer bloom period for the species across its native range

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