Trending: common yarrow (Achillea millefolium) — 891 observations this week
iNaturalist Community
Citizen Science
Yarrow blooming in your yard or along roadsides right now is one of the most reliable signals that summer pollinator season is fully underway — its flat-topped flower clusters are a buffet for native bees, wasps, and beneficial predatory insects that keep garden pests in check.
Common yarrow is a tough, feathery-leaved wildflower that grows in meadows, roadsides, and gardens across North America and much of the world. Right now, thousands of people are spotting and photographing it in bloom, making it one of the week's most-watched plants on the popular nature app iNaturalist. It's a plant with deep roots in both wild landscapes and human history — used for centuries as a medicinal herb and now valued as a low-maintenance garden plant that attracts helpful insects.
Key Findings
891 research-grade observations of common yarrow were recorded on iNaturalist in a single week, placing it among the top trending plant species.
The observation spike aligns with yarrow's peak bloom period in late spring to early summer across temperate regions.
Research-grade status means each sighting was confirmed by at least two independent identifiers, reflecting strong community engagement and species confidence.
chevron_right Technical Summary
Common yarrow is one of the most-observed plants on iNaturalist this week, with 891 research-grade observations logged by citizen scientists across its range. This surge in sightings reflects peak bloom timing for this widespread native wildflower.
Abstract Preview
common yarrow is among the most observed plant species this week with 891 research-grade observations.
open_in_new Read full abstractAbstract copyright held by the original publisher.
Species Mentioned
Was this useful?
Urban Tree Canopy Reduces Heat-Related Mortality by 39% in European Cities
Trees in your local park or street aren't just pretty — they are literally keeping people alive during heatwaves, and planting even a modest number of the ri...
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.