E-Flora BC: Electronic Atlas of the Flora of British Columbia

Teesdalia nudicaulis (L.) W.T. Aiton
shepherd's cress (barestem teesdalia)
Brassicaceae (Mustard family)

Introduction to Vascular Plants

Distribution of Teesdalia nudicaulis
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Species Information

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Illustration Source: The Illustrated Flora of British Columbia

General:
Annual herb from a slender taproot; stem erect, solitary, simple or freely branched from base, 5-25 cm tall, glabrous.

Leaves:
Basal leaves in a rosette, 1.5-5 cm long, slender-stalked, blades oval to egg-shaped or oblanceolate, entire to pinnately-cut with a few short, obtuse, lateral lobes and larger, broader, often 3-lobed terminal segment; stem leaves, if present, less lobed or entire.

Flowers:
Inflorescence of slender, divergent, 4-8 mm long stalks; petals about 1 mm long; sepals often purplish-tinged, about 0.5 mm long.

Fruits:
Silicles, 3-3.5 mm long, slightly narrower, glabrous; beaks very short.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic to dry disturbed areas and waste places in the lowland zone; locally frequent in SW BC; introduced from Europe.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Teesdalia nudicaulis

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information	Value / Class
Site Information	Minimum	Average	Maximum
Elevation (metres)	122	209	259
Slope Gradient (%)	15	28	50
Aspect (degrees) [0 - N; 90 - E; 180 - S; 270 - W]	140	183	240
Soil Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric]	0	1	2
Modal Nutrient Regime Class
Number of field plots species was recorded in:	5
Modal BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in:
Source: Klinkenberg 2020

Climate

The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Status Information

Origin Status	Provincial Status	BC List (Red Blue List)	COSEWIC
Exotic	SNA	Exotic	Not Listed

BC Ministry of Environment: BC Species and Ecosystems Explorer, the authoritative source for conservation information in British Columbia.

Synonyms and Alternate Names

Iberis nudicaulis L.

Taxonomic and Nomenclatural Links

Flora North America treatment for Brassicaceae
Genetic information (NCBI Taxonomy Database)
International Plant Names Index
Taxonomic Information from the World Flora Online
Integrated Taxonomic Information System

Additional Range and Status Information Links

Burke Museum of Natural History (Washington State records)
CalFlora
Consortium of Pacific Northwest Herbaria records
Jepson Interchange
NatureServe Explorer
USDA

Additional Photo Sources

UBC Herbarium Scanned Collection Record
Images From CalPhoto
UT Austin's Native Plant Database
Google Image Search
Flickr Image Search

General References

Google Scholar Search
Family References
General Botanical References for BC

Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2020. E-Flora BC: Electronic Atlas of the Plants of British Columbia [eflora.bc.ca]. Lab for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver. [Accessed: 2024-10-01 4:24:01 AM ]

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