A yellow wetland flower is popping up everywhere right now
iNaturalist Community
Native Plants
If you've noticed small yellow, drooping flowers along a ditch or pond edge lately, you're likely seeing this native plant hit its yearly bloom peak, and logging it on iNaturalist helps scientists track exactly when and where that happens each year.
Nodding beggarticks is a native wildflower that grows in wet, marshy spots and gets its name from the way its yellow flower heads droop or 'nod' as they mature. Right now it's one of the most-observed plants on iNaturalist, with 212 people confirming sightings in just one week. That surge tells naturalists the plant has hit its late-summer to fall bloom window across a wide area.
Key Findings
212 research-grade observations of Bidens cernua were logged in a single week, making it one of the week's top-trending species on iNaturalist
The spike aligns with the plant's typical late-summer to early-fall flowering period in wetland and marsh habitats
High observation volume reflects both bloom timing and increased citizen-scientist activity spotting the species outdoors
chevron_right Technical Summary
Nodding beggarticks, a native wetland wildflower, is having a big moment on iNaturalist with 212 verified sightings logged in a single week, signaling its peak late-summer bloom across its range.
Abstract Preview
Original paper
Trending: Nodding Beggarticks (Bidens cernua) — 212 observations this week
Nodding Beggarticks is among the most observed plant species this week with 212 research-grade observations.
open_in_new Read full abstractAbstract copyright held by the original publisher.
Species Mentioned
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Bidens cernua is a species of flowering plant in the aster family, Asteraceae. It is commonly called nodding beggarticks or nodding bur-marigold. Bidens cernua is distributed throughout much of Eurasia and North America.