Trending: common yarrow (Achillea millefolium) — 1094 observations this week
iNaturalist Community
Native Plants
Yarrow spreading along roadsides and meadow edges near you is one of the easiest native plants to establish from seed, thrives in poor soil, and doubles as a living mulch that draws in parasitic wasps — the ones that hunt aphids and caterpillars in your vegetable beds.
Common yarrow — the flat-topped white wildflower you've probably seen in fields and along roadsides — had over a thousand people photograph and record it this week on a nature-tracking app. That's a lot of eyes on one plant, and it tells us yarrow is blooming widely right now across its range. The sheer number of sightings helps scientists and gardeners alike understand where native plants like this are thriving.
Key Findings
1,094 research-grade observations of common yarrow were submitted to iNaturalist in a single week, placing it among the most-observed plant species.
All observations are classified as research-grade, meaning they meet iNaturalist's verification standards for scientific use.
The observation spike aligns with yarrow's peak flowering period in early summer, reflecting strong seasonal phenology signal.
chevron_right Technical Summary
Common yarrow is one of the most observed plants on iNaturalist this week, with 1,094 research-grade sightings logged by citizen scientists across its range. This surge in observations captures the plant at peak bloom season, building a rich dataset on where and when yarrow appears.
Abstract Preview
common yarrow is among the most observed plant species this week with 1094 research-grade observations.
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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.