Difference between revisions of "Cardamine nuttallii"

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==Photo Gallery==
==Photo Gallery==
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File:CANU CNLMvol flw 2008 (4).jpg
File:CANU CNLMvol flw 2008 (4).jpg

Revision as of 16:10, 29 May 2012

Cardamine nutallii
Cardamine nutallii
Cardamine nutallii
Scientific classification
Kingdom: Plantae
Subkingdom: Tracheobionta
Phylum: Spermatophyta
Subphylum: Magnoliophyta
Class: Asterales
Order: Asterales
Family: Brassicaceae
Genus: Cardamine
Species: C. nuttallii

Common name: Nuttall's toothwort, Slender toothwort, spring beauty

Abbreviation code (Codon): CANU


General: Glabrous to sparsely pubescent perennial from short, slender, fleshy rhizomes, the stems erect, 1-2 dm. tall. Leaves: Basal leaves long-petiolate, the blades orbicular to cordate, usually simple and scalloped, if deeply lobed the lobes entire; cauline leaves 1-3, grouped above mid-length on the stem, usually with 3-5 lanceolate, entire leaflets 1-4 cm. long. Flowers: Inflorescence of bractless, few-flowered racemes; pedicles ascending to erect, 1-2 cm. long; sepals 4, 3-5 mm. long, purplish, the outer pair saccate at the base; petals 4, pink to reddish or purplish, 9-14 mm. long; stamens 6; style slender, 3-6 mm. long. Fruit: Siliques linear, 1.5-5 cm. long and 1.5 mm. broad; seeds in 1 series.

Bloom Period


Washington to California, chiefly west of the Cascades.


Ecological Setting-Dry ground, low to moderate elevations.



FloweringTime March -May
Crop Intervals Perennial


Cardamine nuttallii.jpg

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


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 CANUlat.png

Longitudinal cross section: elliptical CANU.png

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