Two-leaved Toothwort (Cardamine diphylla) is in the mustard family family (Brassicaceae). Across the U.S., iNaturalist users have logged 1,161 research-grade flowering observations of it in our sample, peaking in May.
Nationally it blooms mainly from April to May, but timing varies a lot by state and elevation — see the table below.
When to photograph Two-leaved Toothwort: observations by month (U.S.)
About Two-leaved Toothwort
Cardamine diphylla (Broadleaf toothwort, Crinkle root, Crinkle-root, Crinkleroot, Pepper root, Twin-leaved Toothwort, Twoleaf toothwort, Toothwort; syn. Dentaria diphylla Michx., Dentaria incisa) is a plant native to North America.From Wikipedia via iNaturalist — article, CC BY-SA.
Two-leaved Toothwort by state
| State | Observations | Peak month | Main season |
|---|---|---|---|
| Vermont | 399 | May | May–May |
| New York | 137 | May | Apr–May |
| Ohio | 127 | April | Apr–May |
| Pennsylvania | 102 | April | Apr–May |
| Massachusetts | 78 | May | May–May |
| Michigan | 51 | May | Apr–May |
| West Virginia | 45 | April | Apr–May |
| Kentucky | 43 | April | Apr–Apr |
| North Carolina | 40 | April | Apr–May |
| Maine | 32 | May | May–May |
| New Hampshire | 28 | May | May–May |
| Connecticut | 26 | April | Apr–May |
| Tennessee | 23 | April | Apr–Apr |
| Wisconsin | 13 | May | May–May |
| Georgia | 5 | April | Mar–Apr |
| Virginia | 5 | April | Apr–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 Two-leaved Toothwort?
Nationally, May has the most observations, with the main season from April to May.
Where is Two-leaved Toothwort most often seen?
The most observations come from Vermont, New York, Ohio.