Cardamine diphylla (Michx.) Alph. Wood
Crinkleroot, Two-leaved toothwort, Two-leaf toothwort
Brassicaceae (Mustard Family)
Synonym(s): Dentaria diphylla, Dentaria incisa
USDA Symbol: CADI10
An upright, 8-16 in. perennial with paired leaves, each dissected so deeply as to appear compound. The leaves are palmately cut into 3-5 sections. The basal leaves, when present, arise from a rhizome. A loose cluster of white or light pink, four-petaled blossoms occur at the end of a stem rising above the leaves.
This plant grows in woods but does not tolerate the deep shade cast by evergreen trees.
From the Image Gallery
Bloom InformationBloom Color: White , Pink
Bloom Time: Mar , Apr , May , Jun
DistributionUSA: AL , AR , CT , GA , IL , IN , KY , MA , MD , ME , MI , MO , MS , NC , NH , NJ , NY , OH , PA , SC , TN , VA , VT , WI , WV
Canada: NB , NS , ON , PE
Native Distribution: N.S. to s. Ont. & WI, s. to SC & MS
Native Habitat: Rich, wooded slopes; alluvial woods
Growing ConditionsLight Requirement: Part Shade , Shade
Soil Moisture: Moist
Soil pH: Acidic (pH<6.8)
Soil Description: Humus-rich, acid soil.
Conditions Comments: A light, leafy wintercover is desireable. This plant does not tolerate the deep shade cast by evergreen trees.
BenefitUse Wildlife: West Virginia White is a native butterfly species often mistaken for Cabbage White, an introduced species. Lays its eggs one by one on this plant and Dentaria laciniata, another toothwort.
Butterflies and Moths of North America (BAMONA)Cardamine diphylla is a larval host and/or nectar source for:
West Virginia White |
Learn more at BAMONA
PropagationDescription: Can be easily multiplied by rootstock division when the plant is dormant. Be careful, as rhizomes are easily broken. Seeds should be sown on a moist, shaded seed bed immediately after collection. Expect the seedlings to flower in 3-4 years.
Seed Collection: A long, slender pod splits open 4-5 weeks after the bloom period. To catch the seeds, collect the pods when the seeds have turned dark brown and allow the pods to dry and split in a paper bag. Seeds lose viability quickly in storage.
Seed Treatment: Not Available
Commercially Avail: yes
National Wetland Indicator Status
From the National Suppliers DirectoryAccording to the inventory provided by Associate Suppliers, this plant is available at the following locations:
Edge of the Woods Native Plant Nursery - Orefield, PA
Amandas Garden - Springwater, NY
American Native Nursery - Quakertown, PA
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Mt. Cuba Center - Hockessin, DE
BibliographyBibref 1186 - Field Guide to Moths of Eastern North America (2005) Covell, C.V., Jr.
Bibref 1185 - Field Guide to Western Butterflies (Peterson Field Guides) (1999) Opler, P.A. and A.B. Wright
Bibref 1620 - Gardening with Native Plants of the South (Reprint Edition) (2009) Wasowski, S. with A. Wasowski
* The Midwestern Native Garden: Native Alternatives to Nonnative Flowers and Plants An Illustrated Guide (2011) Adelman, Charlotte and Schwartz, Bernard L.
Search More Titles in Bibliography
Additional resourcesUSDA: Find Cardamine diphylla in USDA Plants
FNA: Find Cardamine diphylla in the Flora of North America (if available)
Google: Search Google for Cardamine diphylla
MetadataRecord Modified: 2013-09-09
Research By: TWC Staff