Plants › mustard family
Purple Cress
Cardamine douglassii
28 photos
Study shows up to four per card, from different observers, so you learn the species rather than one picture. Heart the good ones and swap any you do not like.
Photos you add are credited to you, and you keep the copyright.
Easily confused with
bulbous cressCardamine bulbosa
cut-leaved toothwortCardamine concatenata
Slender toothwortCardamine angustata
CuckooflowerCardamine pratensis
Virginia SpringbeautyClaytonia virginica
milkmaidsCardamine californica
Two-leaved ToothwortCardamine diphylla
blue phloxPhlox divaricata
Study checks a spoken answer against these, and tells you which one you named.
Where it is recorded
| United States | 7,484 |
|---|---|
| Ohio | 3,934 |
| Canada | 2,012 |
| Ontario | 2,010 |
| Indiana | 1,387 |
| Michigan | 1,188 |
| Illinois | 1,045 |
| Kentucky | 715 |
| West Virginia | 354 |
| Virginia | 326 |
Counts show where people looked, not only where it lives.
Traits
Group and habits
- Medicinal useListed as having medicinal use by a harvested source. This is not medical advice.Kew World Checklist of Useful Plant Species
- Forb or herb growth formListed by a harvested source as having a forb or herbaceous growth form.USDA PLANTS Characteristics
- Wetland-associatedListed by a harvested source as obligate or frequent in wetland habitat.USDA PLANTS Characteristics
- Perennial plantListed by a harvested source as having a perennial life duration.USDA PLANTS Characteristics
Edibility, toxicity and medicinal traits are records from datasets, not advice. Never eat, handle or use a wild species on the strength of an app.
Classification
| Kingdom | Plants · Plantae |
|---|---|
| Phylum | Vascular Plants · Tracheophyta |
| Class | Dicots · Magnoliopsida |
| Order | Mustards, Capers, and Allies · Brassicales |
| Family | mustard family · Brassicaceae |
| Genus | Bittercresses and Toothworts · Cardamine |
Sources
- Names, taxonomy and observation counts: www.inaturalist.org
- Photos and recordings: the creator and source are on each one.
- Traits: Kew World Checklist of Useful Plant Species (CC BY 4.0)
- Traits: USDA PLANTS Characteristics (U.S. Government work / public domain)
- How much to rely on each source
Remember the name next time.
Practise Purple Cress with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.