Trending: common yarrow (Achillea millefolium) — 1285 observations this week
iNaturalist Community
Native Plants
Yarrow blooming in your yard or along roadsides right now is a reliable nectar source for native bees, wasps, and beneficial predatory insects that quietly keep garden pests in check all summer.
Common yarrow is having a moment — over a thousand people spotted and photographed it this week alone, making it one of the most-watched plants on the planet's biggest nature-observation platform. It's a tough, feathery-leaved wildflower with flat-topped clusters of tiny white or pink blooms, and it grows almost everywhere from meadows to roadsides to backyard gardens. All those eyes on it help scientists track where it's thriving, shifting, or disappearing as climates change.
Key Findings
1,285 research-grade observations were logged on iNaturalist in a single week, signaling peak bloom across the Northern Hemisphere.
All 1,285 observations met iNaturalist's 'research grade' standard, meaning each was confirmed by at least two independent identifiers — making the data usable for scientific analysis.
The observation spike aligns with late-June phenology when yarrow reaches full flower in temperate North America and Europe.
chevron_right Technical Summary
Common yarrow is one of the most-observed plants on iNaturalist this week, with 1,285 research-grade sightings logged by citizen scientists across its range. The surge reflects peak flowering season and growing interest in this widespread native wildflower.
Abstract Preview
common yarrow is among the most observed plant species this week with 1285 research-grade observations.
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Species Mentioned
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Achillea millefolium, commonly known as yarrow or common yarrow, is a flowering plant in the family Asteraceae. Growing to 1 metre tall, it is characterized by small whitish flowers, a tall stem of fernlike leaves, and a pungent odor.