Cardamine nuttallii
- Scientific Name: Cardamine nuttallii
- Family: Brassicaceae
- Common Names: beautiful bittercres, Nuttall's toothwort, slender toothwort
- Synonyms/Misapplications: Cardamine pulcherrima, Cardamine quercetorum, Dentaria tenella
- Codon: CARNUT
Contents
Taxonomy
| Scientific classification | |
|---|---|
| Kingdom: | Plantae |
| Subkingdom: | Viridiplantae |
| Phylum: | Tracheophyta |
| Subphylum: | Spermatophytina |
| Class: | Asterales |
| Order: | Asterales |
| Family: | Brassicaceae |
| Genus: | Cardamine L. |
| Species: | Cardamine nuttallii Greene |
| Synonyms | |
| |
Description
Perennial, rhizomatous herb with erect stems to 2 dm tall, glabrous to slightly haired.[2] Basal leaves simple to 3-foliate,[3] long-petiolate, round to cordate, scalloped.[2] Cauline leaves 3-foliate, 1-3.[3] Inflorescences racemose, ebractate.[4] Flowers regular, 4-merous; sepals 4, outer pair basally saccate;[2] petals 4, pink, spatulate;[5] stamens 6, tetradynamous;[2] ovary superior, becoming linear siliques to 5 cm x 1.5 mm.[2]
Bloom Period
March-May[2]
Distribution
British Columbia to California, chiefly west of the Cascades.[4]
Habitat
Vernally moist forest openings and understory.[2]
Seed
Seed sample from: 2007
Average Measurement: 1.75 x 1.1 x 0.7
Measurement range: L: 1.5 – 2.1, W: 1 – 1.3, D: 0.2 - 0.9
Features
Shape: Seeds a variety of shapes, mostly slightly flattened ellipses, with the hilum to opposite apex being the longest measurement. Some seeds lenticular in shape.
Additional Structures: Cotyledons accumbent with sulcus present in some.
Color: Seeds golden brown with a tan or white hilum surrounded by a darker brown color.
Surface: Seeds are deeply wrinkled or pitted. Wrinkles commonly oriented longitudinally, but not always. Seeds slightly lustrous.
Latitudinal cross section: elliptical 
Longitudinal cross section: elliptical 
Basic Explanations and Assumptions:
The dimensions for the seeds are length x width x depth. The location of the hilum is used as the base of the seed, and the length is measured from hilum to the opposite apex. Where a style is present, the length is measured from the hilum to the bottom of the style. Width is measured at a right angle to the length at the widest part. Depth is measured at a right angle to the intersection of height and width lines.
Measurements included are the mean average for each measurement of ten separate seeds.
All measurements in millimeters unless otherwise noted.
Photo Gallery
Photo courtesy of CNLM
Photo courtesy of CNLM
Seedling, photo courtesy of CNLM
.jpg)
.jpg)
References
- ↑ Integrated Taxonomic Information System. Retrieved from https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=501196
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 WTU Herbarium, Burke Museum, & University of Washington. Retrieved fromhttps://biology.burke.washington.edu/herbarium/imagecollection/taxon.php?Taxon=Cardamine%20nuttallii
- ↑ 3.0 3.1 Flora of North America. Retrieved from http://dev.floranorthamerica.org/Cardamine_nuttallii
- ↑ 4.0 4.1 WTU Herbarium, Burke Museum, & University of Washington. Retrieved fromhttp://biology.burke.washington.edu/herbarium/imagecollection/browse.php?Family=Brassicaceae&Classification=Vascular%20Plants&BrowseBy=Family&OrderBy=SciName&Display=Descriptions
- ↑ Hitchcock, C. L., Cronquist, A., Giblin, D., & Legler, B. et al. (2018). Flora of the Pacific Northwest: an illustrated manual. Seattle: University of Washington Press. p. 293.
