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Cut-Leaved Toothwort

Cardamine concatenata · mustard family

Cut-Leaved Toothwort (Cardamine concatenata)
(c) Judy Gallagher, some rights reserved (CC BY-SA), uploaded by Judy Gallagher · CC BY-SA · via iNaturalist

Cut-Leaved Toothwort (Cardamine concatenata) is in the mustard family family (Brassicaceae). Across the U.S., iNaturalist users have logged 5,460 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 Cut-Leaved Toothwort: observations by month (U.S.)

JanFebMarAprMayJunJulAugSepOctNovDec

About Cut-Leaved Toothwort

Cardamine concatenata, the cutleaf toothwort, crow's toes, pepper root or purple-flowered toothwort, is a flowering plant in Brassicaceae. It owes its name to the tooth-like appearance of its rhizome. It is a perennial plant woodland wildflower native to eastern North America. It is considered a spring ephemeral and blooms in March, April, and/or May.From Wikipedia via iNaturalist — article, CC BY-SA.

Cut-Leaved Toothwort by state

StateObservationsPeak monthMain season
Ohio661AprilMar–Apr
Kentucky602MarchMar–Apr
Illinois534AprilMar–Apr
Pennsylvania456AprilApr–Apr
Virginia402AprilMar–Apr
North Carolina361MarchMar–Apr
Indiana328AprilMar–Apr
Maryland242AprilMar–Apr
New York214AprilApr–Apr
Michigan206AprilApr–May
Missouri204AprilMar–Apr
Tennessee185MarchMar–Mar
Arkansas170MarchMar–Mar
West Virginia170AprilMar–Apr
Wisconsin156AprilApr–May
Delaware106AprilApr–Apr
Minnesota91AprilApr–May
District of Columbia62MarchMar–Apr
Vermont51MayMay–May
Georgia47MarchMar–Apr
Alabama46MarchMar–Mar
Iowa39AprilApr–Apr
New Jersey28AprilApr–Apr
Massachusetts23AprilApr–May
Mississippi17MarchMar–Mar
Kansas16MarchMar–Apr
Oklahoma13MarchMar–Mar
South Carolina13MarchMar–Mar
New Hampshire8MayMay–May

Main season = months with at least 30% of the state's peak-month count.

Related wildflowers (mustard family)

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 Cut-Leaved Toothwort?
Nationally, April has the most observations, with the main season from March to April.
Where is Cut-Leaved Toothwort most often seen?
The most observations come from Ohio, Kentucky, Illinois.