Yarrow blooms draw hundreds of citizen scientists into the field
iNaturalist Community
Citizen Science
Common yarrow growing along your fence line or in a neglected corner of your yard is actively being mapped by hundreds of observers right now, and your own sighting this week would contribute to a dataset tracking how this tough native is shifting its range with changing summers.
Common yarrow is having a big moment in the citizen science world, with over 400 confirmed sightings submitted to iNaturalist in a single week. It's a widespread wildflower with feathery leaves and clusters of small white blooms that show up in meadows, roadsides, and gardens across North America and Europe. That many eyes on one plant at once builds a real-time map of where it's thriving and when it peaks each year.
Key Findings
412 research-grade observations of common yarrow were recorded on iNaturalist in a single week
Observation volume places yarrow among the most-tracked plant species on the platform for the current period
Trend aligns with peak summer flowering window when yarrow is most visible and identifiable
chevron_right Technical Summary
Common yarrow is one of the most-observed plants on iNaturalist this week, with 412 research-grade observations logged by citizen scientists across its range. The spike reflects peak summer flowering season, when yarrow's flat-topped white flower clusters make it easy to spot and identify.
Abstract Preview
Original paper
Trending: common yarrow (Achillea millefolium) — 412 observations this week
common yarrow is among the most observed plant species this week with 412 research-grade observations.
open_in_new Read full abstractAbstract copyright held by the original publisher.
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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.