Nuttall's toothwort (Cardamine nuttallii) is in the mustard family family (Brassicaceae). Across the U.S., iNaturalist users have logged 983 research-grade flowering observations of it in our sample, peaking in April.
Nationally it blooms mainly from March to April, but timing varies a lot by state and elevation — see the table below.
When to photograph Nuttall's toothwort: observations by month (U.S.)
About Nuttall's toothwort
Cardamine nuttallii is a species of cardamine known by the common name Nuttall's toothwort. It is native to western North America from British Columbia to California, where it grows in moist mountain habitats.From Wikipedia via iNaturalist — article, CC BY-SA.
Nuttall's toothwort by state
| State | Observations | Peak month | Main season |
|---|---|---|---|
| Oregon | 871 | March | Mar–Apr |
| Washington | 112 | April | Mar–Apr |
Main season = months with at least 30% of the state's peak-month count.
Related wildflowers (mustard family)
Garlic Mustard
Dame's Rocket
Annual Honesty
Cut-Leaved Toothwort
Milkmaids
Hairy Bittercress
Shepherd's-Purse
Western Wallflower
Photography tips
- Photograph flowers on calm, overcast mornings to avoid wind blur and harsh shadows.
- Get low: a shallow depth of field (f/2.8–f/5.6) isolates a bloom against soft color.
- Stay on trails — trampling meadows kills plants and ruins next year's display.
- Try a kaleidoscope abstract of a single bloom with our online kaleidoscope tool.
FAQ
When is the best time to photograph Nuttall's toothwort?
Nationally, April has the most observations, with the main season from March to April.
Where is Nuttall's toothwort most often seen?
The most observations come from Oregon, Washington.