Trending: yellow trout lily (Erythronium americanum) — 564 observations this week
iNaturalist Community
Phenology
Yellow trout lily carpeting a woodland floor in April is one of the earliest signs that spring pollinators have food available — spotting it in your local forest preserve means the seasonal clock is ticking and native bees are waking up.
Yellow trout lily is a small wildflower that pops up in forests each spring for just a few weeks before disappearing underground for the rest of the year. Right now, hundreds of people across North America are noticing and photographing it, which tells us it's peak bloom time. This kind of crowd-sourced tracking helps scientists understand how spring is shifting year to year.
Key Findings
564 research-grade observations were submitted to iNaturalist in a single week, placing yellow trout lily among the most observed plant species during that period.
The spike in observations aligns with the species' brief spring ephemeral bloom window, typically lasting only 2-4 weeks before the plant goes dormant.
Research-grade status requires community agreement on identification, indicating high observer engagement and photographic quality across the 564 records.
chevron_right Technical Summary
Yellow trout lily is surging in citizen-science observations this week, with 564 research-grade sightings logged on iNaturalist — signaling that this native spring ephemeral is currently blooming across eastern North America.
Abstract Preview
yellow trout lily is among the most observed plant species this week with 564 research-grade observations.
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Species Mentioned
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Erythronium americanum, the trout lily, yellow trout lily, fawn lily, yellow adder's-tongue, or yellow dogtooth violet, is a species of perennial, colony forming, spring ephemeral flower native to North America and dwelling in woodland habitats. Within its range it is a very common and widespread...